image of
Related image


Scroll down to see all publications and blog posts. Not all pages are curated—search.


Newest blog posts

View all 247 related blog posts...

2023-03-20 Adobe Camera Raw Still Lacks Distortion Correction for Sony FE 20-70mm f/4 G

2023-03-07 Sony FE 20-70mm f/4G: Fun-House-Mirror Distortion, as Expected

2023-03-07 Sony FE 20-70mm f/4G: Assessing Distortion at 20mm, 24mm, 35mm, 50mm, 65mm

2023-01-17 Sony FE 20-70mm f/4G: Appealing Zoom Range, How Good Will It Be?

2022-12-02 Fujifilm GF 20-35mm f/4 Distortion Evaluation from 20mm to 35mm

2022-11-05 Hasselblad USA Service Center Closed/Relocated? Expertise to Repair? ***UPDATED WITH OFFICIAL RESPONSE ***

2022-09-10 Fujifilm GFX100S vs Hasselblad X2D 100C: Which is Better?

2022-03-04 Venus Optics Laowa GFX 17mm f/4 Zero-D for Fujifilm Medium Format

2022-03-04 Distortion and Distortion Correction for Fujifilm GF 80mm f/1.7, Fujifilm GF 45mm f/2.8, Fujifilm GF 32-64mm f/4

2022-03-02 Fujifilm GF 32-64mm f/4 Distortion and Distortion Correction

Most recent pages at other diglloyd sites:

See also 14 pages at macperformanceguide.com

See also 11 pages at windinmyface.com

2023-03-21 In Science, Things do not “work” Unless the Evidence Can be Consistently and Repeatedly Shown to Support the Claim

2023-03-08 A Few Doctors So Cocksure about COVID Jab that Medical Battery on Children is Rationalized

2023-01-01 WSJ: When Will Academia Account for Its Covid Failures?

2022-10-04 Nuclear translocation of spike mRNA and protein is a novel pathogenic feature of SARS-CoV-2

2020-08-20 Reader Question on diglloydTools IntegrityChecker: “verify terabytes of content back and forth between the cloud and other local RAID drives I have”.

2020-07-26 Apple Core Rot: Music.app Screws my Music Library, Forgetting Locations and Immediately Crashing When Searching for Missing Tracks

2018-04-29 Cycling Hancock Summit in Western Nevada

2018-01-23 Phase 2: Inverter Mounting Locations

2017-11-27 Time Machine and APFS: Local Backups

2017-10-16 Mobile Phone Companies Sell your Name and Location Data

2015-04-13 Understanding Work Efficiency, Kilojoules and Kilocalories

2014-01-21 2013 Mac Pro: DxO Optics Pro and Scalability with more CPU Cores

2014-01-18 2013 Mac Pro: DxO Optics Pro Raw-to-TIF

2013-10-26 OS X Mavericks: Window Locations Lost

2011-10-25 2012 Moots MootoX YBB — Images (Cockpit, Stem, Bar)

Sharpness and Blur by Optics

Blur from optical behavior or subject-related issue..

  1. Blur Caused by Lens Optics
  2. Blur by Violet Fringing (Longitudinal Chromatic Aberration aka LOCA)
  3. Blur by Red/Cyan Fringes (Lateral Chromatic Aberration aka LACA)

Appendices

Glossary and further reading..

  1. Glossary

Ray Angle, Vignetting, Color Shading on a Digital Sensor

Evenness of illumination, color shading, digital sensor effects, ray angle..

  1. Ray Angle and Digital Sensors
  2. Filter Stack Thickness vs Digital Sensors
  3. Color Shading on a Digital Sensor
  4. Loss of Lens Brightness at Fast Apertures on a Digital Sensor
  5. Ray Angles for Zeiss DSLR Lenses
  6. Ray Angles for Rangefinder Lenses

Post Processing for Sharpness

Making image captures look sharp..

  1. Local Contrast Enhancement for Perceived Sharpness

Choosing Equipment

How to choose a camera, lenses, and the other stuff that’s worthwhile..

  1. Choosing Lenses

Workflow Tips and technique

An introduction to digital workflow and best practices. .

  1. RAW Conversion: Adobe Camera RAW vs DXO Optics Pro

Photoshop How-To

Working with Photoshop for raw conversion and more. .

  1. Localized Contrast Enhancement

How To Get Peak Sharpness With Perfect Focus

Focusing is more complicated than it first appears..

  1. Hedge Your Bet By Stopping Down

Depth of Field

Controlling the zone of sharp detail..

  1. Circle Of Confusion
  2. What are F-stop and T-stop?
  3. Format-Equivalent Depth of Field and F-Stop
  4. Case Study: Format-Equivalent F-Stop: Micro Four Thirds vs 35mm Full Frame (Pellegrino)
  5. Case Study: Format-Equivalent F-Stop: APS-C vs 35mm Full Frame (Pellegrino)
  6. Depth of Field at the Periphery
  7. Delay in Depth of Field by Double-Image Bokeh
  8. Example: Sensor Size and Focal Length (Bottles)

Focus Shift and Spherical Aberration

Elusive sharpness, depending on aperture.

  1. Optics (MTF)

Understanding Modulation Transfer Function (MTF)

Understanding resolution and contrast graphs..

  1. Reading MTF Charts
  2. Lateral Chromatic Aberration and Astigmatism

Optical Aberrations and Behaviors

Understanding the various optical aberrations and behaviors..

  1. Optical Aberrations (General)
  2. Point Spread Function
  3. Point Spread: World Class vs Ordinary (55mm and 50mm, Barn Interior)

Vignetting (Field Illumination)

Evenness of illumination across the frame and related effects..

  1. Vignetting
  2. Cat’s Eye Effect

Spherical Aberration

Diffuse haze at wide apertures..

  1. Spherical Aberration
  2. Examples of Spherical Aberration
  3. Case Study: Spherical Aberration with Nikon 50mm f/1.2 AIS

Astigmatism

Understanding astigmatism..

  1. Astigmatism
  2. Astigmatism and Digital Sensors
  3. Chromatic Aberration from Astigmatism (Pseudo LACA)

Lateral Chromatic Aberration

Understanding lateral chromatic aberration (color fringing)..

  1. Lateral Chromatic Aberration (Color Fringing)
  2. Correcting Lateral Chromatic Aberration During RAW Conversion
  3. Faint Traces of Lateral Chromatic Aberration

Longitudinal Chromatic Aberration

Understanding Longitudinal (Axial) chromatic aberration (LOCA)..

  1. Longitudinal Chromatic Aberration (LOCA / Violet Fringing)
  2. Examples of Violet Fringing from Longitudinal Chromatic Aberration (LOCA)
  3. Violet Fringing Case Study (LOCA with Zeiss Otus vs Others)
  4. Violet Fringing Case Study (LOCA with Zeiss 85mm and Leica 90mm)
  5. Correcting Longitudinal Chromatic Aberration During RAW Conversion

Secondary Longitudinal Chromatic Aberration

Secondary Longitudinal Chromatic Aberration (SLOCA)..

  1. Secondary Longitudinal Chromatic Aberration (Color Bokeh)
  2. Mitigating Longitudinal Chromatic Aberration by Stopping Down
  3. What Perfect Correction for LOCA Looks Like
  4. Examples of Secondary Longitudinal Chromatic Aberration
  5. Case Study: Secondary Color Variance with Focus

How to Test A Lens

How to verify a good sample and assess all aspects of lens performance..

  1. Testing for Lateral Chromatic Aberration
  2. Testing for Longitudinal Chromatic Aberration (LOCA)
  3. Testing for distortion

Optical Behavior (Case Studies)

Illuminating examples of lens behavior..

  1. Leica 50mm f/0.95 Noctilux-M ASPH Aberrations

Monochrome Post-Processing

Finishing touches..

  1. Localized Contrast Enhancement over Entire Image

Image Rendition

Visible spectrum, cameras, color space, infrared vs. color & examples..

  1. Comparing color to infrared

Shooting Considerations

All about shooting in infrared..

  1. Autofocus Tip for Canon EOS
  2. Filters

Image Quality Issues

Unique challenges of digital infrared..

  1. Hot Spots

Wrap-up and Summary

Conclusions and where to find products and additional information..

  1. Infrared Filter Manufacturers and Vendors
  2. Glossary

Nikon Lenses vs Infrared

How Nikon-compatible lenses perform for infrared use..

  1. Coastal Optics 60mm f/4 UV-VIS-IR APO Macro

Panasonic S1R

High-resolution L-mount full-frame from Panasonic..

  1. Examples: Portraits with Panasonic S1R Eye AF

Panasonic Lumix S 24-105mm f/4 Macro OIS

All-arounder entry-level mid-range zoom for L-Mount..

  1. Optical Distortion Across the Zoom Range, with/without Distortion Correction

Panasonic Lumix S PRO 50mm f/1.4

Premium fast normal lens for L-Mount..

  1. Distortion for Panasonic Lumix S PRO 50mm f/1.4
  2. Examples: Portraits using Eye AF (Panasonic S1R)
  3. Aperture Series: Pines by Creek (Panasonic S1R)

Leica SL

24-Megapixel vs mirrorless..

  1. Leica SL vs M240: Lens Corrections and Color Rendering with M Lenses

Leica 28mm f/2 APO-Summicron-SL ASPH

Fast short wide angle lens for L-Mount cameras..

  1. MTF for Leica 28mm f/2 APO-Summicron-SL ASPH
  2. Distortion and Distortion Correction for Leica 28/2 APO-Summicron-SL ASPH

Leica 35mm f/2 APO-Summicron-SL ASPH

Fast apochromatic prime/wide lens for L-Mount cameras..

  1. Distortion for Leica 35mm f/2 APO-Summicron-SL ASPH

Leica 50mm f/1.4 Summilux-SL ASPH

Fast apochromatic prime lens for L-Mount cameras..

  1. MTF for Leica 50mm f/1.4 Summilux-SL ASPH
  2. Distortion for Leica 50mm f/1.4 Summilux-SL ASPH, with Examples
  3. Examples: Lee Vining Canyon (Panasonic S1R)

Leica 50mm f/2 APO-Summicron-SL ASPH

Fast short normal lens for L-Mount cameras..

  1. MTF for Leica 50mm f/2 APO-Summicron-SL ASPH
  2. Aperture Series: Backlit Pines among Glacial Erratics fronting Granite Cliff

Leica 75mm f/2 APO-Summicron-SL ASPH

Fast short telephoto lens for L-Mount cameras..

  1. Aperture Series: Huge Pine Among Aspen

Leica 90mm f/2 APO-Summicron-SL ASPH

Fast short telephoto lens for L-Mount cameras..

  1. Examples: Portraits with Panasonic S1R Eye AF

Leica 16-35mm f/3.5-4.5 Super-Vario-Elmar-SL ASPH

Ultra wide angle premium zoom lens relying on distortion correction..

  1. MTF for Leica 16-35mm f/3.5-4.5 Super-Vario-Elmar-SL ASPH
  2. Distortion @ 16mm for Leica 16-35mm f/3.5-4.5 Super-Vario-Elmar-SL ASPH
  3. Distortion @ 21mm for Leica 16-35mm f/3.5-4.5 Super-Vario-Elmar-SL ASPH
  4. Distortion @ 25mm for Leica 16-35mm f/3.5-4.5 Super-Vario-Elmar-SL ASPH
  5. Distortion @ 28mm for Leica 16-35mm f/3.5-4.5 Super-Vario-Elmar-SL ASPH
  6. Distortion @ 35mm for Leica 16-35mm f/3.5-4.5 Super-Vario-Elmar-SL ASPH

Leica 24-90mm f/2.8-4 Vario-Elmarit-SL ASPH OIS

All-arounder zoom with dubious optical compromises..

  1. Distortion @ 24mm and 90mm, Uncorrected and Corrected (Cerro Gordo Museum Interior)
  2. Distortion @ 24mm, Uncorrected and Corrected (DeChambeau Barn)
  3. Aperture Series @ 24mm: Fresh June Snow on White Mountain Road (Leica SL)
  4. Aperture Series @ 24mm: DeChambeau Barn (Leica SL)

Nikon D800E

36 megapixels in a compact full-frame DSLR..

  1. LENS: D800 + 180/2.8D ED-IF vs AF-S 70-200/2.8G VR II @ 185mm

Canon EOS 5DS / 5DS R

50 megapixel successor to the 22 megapixel Canon 5D Mark III..

  1. Correcting Lateral Chromatic Aberration and Distortion (24-70mm f/2.8L II @ 24mm, Barcroft Army Boxes)

Nikon AF-S 70-200mm f/4 ED VR and 70-200mm f/2.8 ED VR II

Which speed zoom for the Nikon D800/D800E?.

  1. Distortion: 200mm, 160mm

Nikon AF-S 70-200mm f/2.8G ED VR II

Nikon’s bread and butter telephoto zoom.

  1. Distortion
  2. T-stop vs 180/2.8D ED

Canon EOS 5D Mark II review

Canon 5D Mark II impressions.

  1. Live View Vignetting

Nikon vs Canon: noise and sharpness

Nikon vs Canon: Noise and Sharpness.

  1. Noise

Canon 14mm f/2.8L II

In-depth review of the Canon EF 14mm f/2.8L II including flare, distortion, field curvature, resolution charts, numerous field examples and comparison to the Nikon 14-24mm f/2.8G. The Canon EF 14/2.8L II is a superb lens, but with some peculiarities which may enhance or degrade its appeal for different uses. The review is as much a “user guide” as a review; even if you use this lens it’s well worth your time to read this review..

  1. Distortion
  2. Glossary

Voigtlander 20mm f/3.5 Color-Skopar

Very compact ultra wide angle..

  1. Examples—20/3.5 Color Skopar

Voigtlander 90mm f/3.5 APO-Lanthar SL II

Medium telephoto with world-class chromatic correction..

  1. Aperture Series: Shimano Drive Train (Sony A7R II)

Voigtlander 180mm f/4 APO-Lanthar

Telephoto with world-class chromatic correction..

  1. Aperture Series: Shimano Drive Train (Sony A7R II)

Canon TS-E 17/4L

Ultra wide angle tilt shift with tremendous versatility.

  1. Canon 17/4L: The Shift Advantage
  2. Canon 17/4L: Distortion
  3. Canon 17/4L: Vignetting

Canon TS-E 24/3.5L II

Canon TS-E 24mm f/3.5L II.

  1. Canon 24/3.5L II: Distortion

Canon TS-E 45mm f/2.8

Normal lens with tilt/shift.

  1. Aperture Series: Wyman Canyon Lower Cabin (5D Mark III)

Canon TS-E 90mm f/2.8

Medium telephoto tilt/shift lens.

  1. Aperture Series: Wyman Canyon Lower Cabin (5D Mark III)

Nikon 19mm f/4E ED PC-E

Ultra wide tilt/shift lens.

  1. Examples: Corrected vs Uncorrected Lateral Chromatic Aberration

28mm Shift Lenses for Nikon

[Archive] In-depth review on the Nikon D2x of the Nikon 28mm f/3.5 PC-Nikkor, Nikon 28mm f/4 PC-Nikkor and the Schneider 28mm f/2.8 PC-Super-Angulon. Flare, distortion, color fringing, color rendition, sharpness, ergonomics, aligmnent, sample variation..

  1. Color Fringing
  2. Distortion

Landscape Photography at Wide Apertures

Escape the banale postcard look by shooting landscapes at f/1.4 or f/0.95..

  1. Shooting Tips
  2. Vignetting As a Tool
  3. Examples with Leica 50mm f/0.95 Noctilux-M ASPH

Pentax HD FA 15-30mm f/2.8 ED SDM WR

Full frame ultra wide angle zoom..

  1. Color Fringing (Lateral Chromatic Aberration) at 15mm, 21mm, 30mm (Pentax K-1 SuperRes)

Pentax SMCP-FA 43mm f/1.9 Limited

Full frame slightly wide normal lens, pancake form factor..

  1. Overview of PENTAX smc FA 43mm f/1.9 Limited
  2. Distortion, Uncorrected vs Corrected

Pentax HD DA Limited 70mm f/2.4

APS-C moderate telephoto equivalent to 105mm on full-frame..

  1. Aperture Series: Sidelit Barn (Pentax K3)

Canon 24mm f/2.8 IS USM

Canon’s compact high-performance 24mm prime..

  1. Examples: Field Curvature and Color Fringing (SUV)

Canon 40mm f/2.8 STM

Canon’s tiny and lovely pancake lens..

  1. Comparison: Canon 40/2.8 STM vs Voigtlander 40mm f/2 SL II
  2. Aperture Series: Green Machine, Oblique View (5DS R)

Canon 50mm Lenses

Is Canon’s f/1.2 lens really better than an inexpensive f/1.4 or f/1.8?.

  1. Canon 50mm Lenses: Main Page
  2. Canon 50mm Lenses: Field Illumination
  3. Canon 50/1.2L vs 50/1.4 (5D Mark III, Wyman Cabin)

Canon 85mm f/1.4L IS USM

Canon’s best-ever medium telephoto and with image stabilization..

  1. Examples: Saddlebag Lake Area
  2. Aperture Series: Hanging Dead Brown Needles Pine Branch

Canon TC III

Do Canon’s 1.4X and 2X version III tele extenders offer image quality at reasonable apertures?.

  1. Canon Extender 1.4X II vs 1.4X III with 300/2.8

Canon 100mm f/2.8L Macro IS

Canon 100mm f/2.8L Macro IS .

  1. Canon 100mm f/2.8L: Vignetting

Canon 35mm f/2 IS

Canon’s image stabilized 35mm..

  1. Compared to 35/1.4L, 24-70/2.8L II (Fence Gate, Canon 5DM3)

Canon 200-400mm f/4L IS

Canon’s versatile super telephoto..

  1. Overview of Canon 200-400mm f/4L IS

Sigma 24-35mm f/2 DG HSM Art

Mid-range optimized groundbreaking f/2 zoom..

  1. Distortion @ 24mm, Corrected vs Uncorrected
  2. Distortion @ 35mm, Corrected vs Uncorrected
  3. Shootout: vs Sigma 35/1.4A: Aspen With Rust-Colored Trunk

Sigma 14mm f/1.8 DG HSM Art

A whopping 4/3 stop faster than other lenses in its range..

  1. Aperture Series: Clearing Storm Over Pywiack Dome
  2. Aperture Series + Focus Stack: Precocious Cluster of Yellow Aspen Leaves

Sigma 20mm f/1.4 DG HSM Art

The fastest extreme wide angle yet..

  1. Vignetting for Sigma 20mm f/1.4 DG HSM Art
  2. Distortion for Sigma 20mm f/1.4 DG HSM Art + Examples

Sigma 24mm f/1.4 DG HSM Art

Sigma’s fast high performance wide angle..

  1. Sigma 24mm f/1.4 DG HSM Art
  2. Vignetting for Sigma 24mm f/1.4 DG HSM Art
  3. Distortion for Sigma 24mm f/1.4 DG HSM Art
  4. Aperture Series: Glistening Rocks and Running Water (Nikon D810)
  5. Aperture Series: Water Wears Its Way (Nikon D810)
  6. Aperture Series: Huge Barn Interior (Nikon D810)
  7. Shootout: Sigma 24/1.4 Art vs Nikon AF-S 24/1.4G (Dolls, NikonD810)

Sigma 28mm f/1.4 DG HSM Art

Extraordinary optical efforts for outstanding performance..

  1. Vignetting
  2. Distortion

Sigma 35mm f/1.4 DG HSM Art

Sigma’s fast and affordable moderate excellent wide angle..

  1. Distortion
  2. Distortion vs Sigma 24-35mm f/2A, Corrected vs Uncorrected (Cabin)
  3. Examples (Alpine Creek, Canon 5DM3)
  4. Compared to Nikon AF-S 35mm f/1.4G (Dolls, Nikon D800E)
  5. Aperture Series: Red Beater Bike (Nikon D800E)

Sigma 40mm f/1.4 DG HSM Art

Extraordinary optical efforts for outstanding performance..

  1. Overview of Sigma 40mm f/1.4 DG HSM Art
  2. Vignetting
  3. Distortion

Sigma 50mm f/1.4 DG HSM Art

Sigma’s fast high performance normal lens..

  1. Distortion of Sigma 50/1.4A
  2. Sigma 50/1.4A: Color Correction and LOCA, Implications
  3. Aperture Series: Wyman Cabin (5D Mark III)

Sigma 85mm f/1.4 DG HSM Art

Sigma’s best portrait lens..

  1. Shootout: Sigma 85/1.4A vs Zeiss Milvus 85/1.4 vs Nikon 85/1.4G (Snowy Spur of Mt Conness, Nikon D810)

Sigma 105mm f/1.4 DG HSM Art

Extraordinary optical efforts for class-leading performance?.

  1. Overview of Sigma 105mm f/1.8 DG HSM Art

Sigma 135mm f/1.8 DG HSM Art

Fastest 135mm lens yet, with ultra high performance..

  1. Distortion, Uncorrected and Corrected at Distance
  2. Distortion, Uncorrected and Corrected at Close Range

Sigma Telephoto APO Macro Lenses: 150mm, 180mm

Sigma’s fast telephoto APO macro lenses..

  1. Performance at 1:1 (Doll Face, D800E)

Schneider PC-TS Super-Angulon 28mm f/4.5 HM Aspheric

Wide angle tilt/shift lens at 28mm..

  1. Aperture Series: Drive Train and Chromatic Correction, 12mm Shift (D810)

Sigma 50mm f/1.4 EX DG HSM on Canon EOS 1Ds Mark III

The Sigma 50mm f/1.4 is a worthy contender in the crowded 50mm area. See how it performs compared to the Canon EF 50/1.4 and EF 50/1.2L..

  1. Field illumination (vignetting)

180mm Lenses for the Nikon D3x

Explores options for 180mm lenses on the Nikon D3x, including the Leica 180/2.8 APO-Elmarit-R in Nikon mount, Nikon 180/2.8 ED, Nikon 70-200/2.8 VR, Nikon 70-300/4.5-5.6 VR, and Tamron 70-200/2.8. Updated: now includes the Voigtlander 180/4 APO!.

  1. Transmission stop (T-stop)
  2. Conclusions

Nikon AF-S 24-120mm f/4G VR

Nikon’s latest wide range zoom with vibration reduction and fixed f/4 aperture..

  1. Distortion at 24mm
  2. Distortion at 28mm
  3. Distortion at 35mm
  4. Distortion at 50mm
  5. Distortion at 70mm
  6. Distortion at 85mm
  7. Distortion at 120mm
  8. Conclusions

Nikon 35mm f/1.4 AIS

Nikon’s classic-design manual focus moderate wide angle..

  1. Aperture Series: Kitchen Counter Items (Sony A7R)

Nikon AF-S Nikkor 50mm f/1.4G

Nikon’s latest 50mm lens compared with the Zeiss ZF 50/1.4, Nikon 50/1.4D and Sigma 50/1.4..

  1. Vignetting and Brightness

Nikon AF-S Nikkor 50mm f/1.8G

Nikon’s High Performance Moderately-Priced 50mm..

  1. Vignetting and Brightness
  2. Detailed Comparison 50/1.8G vs 50/1.4G (Mosaic)

Nikon AF-S Nikkor 58mm f/1.4G

Nikon’s High performance normal lens.

  1. Distortion Examples: Uncorrected vs Corrected
  2. Close Range Comparison vs NOCT-Nikkor (D800E, Bathroom)
  3. Shootout: 58/1.4G vs 50/1.4G, 50/1.8G, 50/1.2 AIS (D800E, Beaver Dam)
  4. Matched Comparison vs 50/1.4G (D800E, Beaver Dam)
  5. Aperture Series: Boulder Logjam (D800E)
  6. Aperture Series: DeChambeau Ranch Outbuilding (D800E)

Canon 24mm f/1.4L II

State of the art design in a fast ultra wide angle lens..

  1. In-depth comparison to EF 16-35/2.8L II
  2. Distortion on architecture compared to 16-35/2.8L II

Nikon AF Micro Nikkor 200mm f/4.0D IF-ED

Nikon’s workhorse 200mm macro lens, and not just sharp at close-ups!.

  1. Axial Chromatic Aberration Check

Nikon AF-S Nikkor 20mm f/1.8G

Nikon’s fast ultra wide angle..

  1. Distortion (and Correction) for Nikon 20mm f/1.8G
  2. Shooting at Night
  3. Aperture Series: Green and Orange Pumpkins (D810)
  4. Aperture Series: Multi-Stem Sunflower and Blue Sky (D810)
  5. Aperture Series: Mt Conness Glacier Remnants (D810)
  6. Aperture Series: Sparkling Lake (D810)

Nikon AF-S Nikkor 24mm f/1.8G

Versatile autofocus wide angle..

  1. Distortion (and Correction) for Nikon 24mm f/1.8G
  2. Vignetting for Nikon 24mm f/1.8G
  3. Aperture Series: Mountainside At Dusk (D810)

Nikon AF-S 24mm f/1.4G ED

State of the art design in a fast 24mm lens. Includes full-resolution images at f/1.4..

  1. Autofocus Examples At Night
  2. 24/1.4G Distortion vs 14-24/2.8G and 24/2 AIS
  3. Correcting Distortion in Adobe Camera Raw
  4. Vignetting from f/1.4 - f/8
  5. Examples — Various
  6. Aperture Series: Tile Rooftops

Olympus Zuiko Auto-S 50mm f/1.2

An ultra-fast older design still offers appeal on modern digital..

  1. Aperture Series: Poppies and Pots (Sony A7R)
  2. Aperture Series: Teak Bench, Pots, Grasses (Sony A7R)
  3. Examples at Close Range, Backyard Stuff (Fujifilm GFX)

Nikon AF-S 60mm f/2.8G Macro

Comparing the new Nikon 60mm to its predecessors, and the Coastal Optics 60/4 APO..

  1. Comparison with Nikon 60/2.8D and Coastal 60/4 APO

Coastal Optics 60mm f/4 UV-VIS-IR APO Macro

A superlative multi-spectral lens with perfect color correction..

  1. Zero Longitudinal Chromatic Aberration

Canon EF 11-24mm f/4L USM

Extreme wide angle zoom..

  1. Color Fringing, Uncorrected and Corrected, Optical Misalignment? (5DS R)
  2. Color Fringing in Blue Light: Remarkable Gains From Correction (5DS R)

Canon EF 16-35mm f/4L IS

Canon’s compact image stabilized wide angle zoom..

  1. Distortion at 16mm

Canon 24-70mm f/2.8L II and 24-70mm f/4L IS

Canon’s premium mid-range zooms..

  1. Examples: Russian Ridge

Nikon AF-S 28mm f/1.8G

A fast moderate wide angle lens with some practical difficulties..

  1. Examples (Dana Meadow Portraits)
  2. Compared vs Nikon 28/2 AIS, Voigtlander Color Skopar 28/2.8 SL II (Cottonwood Canyon Fall Color)
  3. Compared vs 28/2 AIS, Voigtlander 28/2.8 SL II (Cabin Bathroom)

Nikon AF-S 35mm f/1.4G

State of the art design in a fast 35mm lens..

  1. Aperture Series f/1.4...f/11 — Tree Trunk
  2. Aperture Series f/1.4...f/11 — Silver Canyon Pine

Nikon AF-S 35mm f/1.8G

Relatively inexpensive alternative to the pro 35/1.4G..

  1. Introduction to Nikon 35/1.8G
  2. vs 35/1.4G (D800E, Frog Hosed)

Nikon AF-S 85mm f/1.4G

State of the art design in a fast 85mm lens..

  1. Distortion
  2. 85/1.4G vs 85/1.8G: Distortion (D800E)
  3. Vignetting from f/1.4 - f/8
  4. Aperture Series f/1.4 - f/11 Lembert Dome

Nikon AF-S 105mm f/1.4E ED

Nikon’s best-ever f/1.4 lens?.

  1. Vignetting Examples
  2. Examples: Initial Evaluation, Backyard and Misc

Nikon AF-S 300mm f/4E PF ED VR

Compact and lightweight travel-friendly telephoto..

  1. Overview: Nikon AF-S 300mm f/4E PF ED VR
  2. Apertures Series: Looped Oil Pipes (Nikon D810)

Nikon Ultra Wide Zooms

Comparing Nikon 16-35mm f/4 VR, 17-35mm f/2.8, 14-24mm f/2.8, 18-35mm, 24-70mm f/2.8 along with Nikon 20mm f/3.5, 24mm f/2, 28mm f/2, 35mm f/1.4 AIS, and more..

  1. Personal Usage Notes and Reactions
  2. Correcting Distortion in Software
  3. Distortion at 16mm
  4. Distortion at 17mm
  5. Distortion at 21mm
  6. Distortion at 24mm
  7. Distortion at 28mm
  8. Distortion at 35mm
  9. Vignetting at 16mm
  10. Vignetting at 17mm
  11. Vignetting at 21mm
  12. Vignetting at 24mm
  13. Vignetting at 28mm
  14. Vignetting at 35mm
  15. Distortion of Nikon 18-35mm f/3.5-5.6 vs Nikon 16-35 f/4 VR
  16. Vignetting of Nikon 18-35mm f/3.5-5.6 vs Nikon 16-35 f/4 VR

Canon EF 100-400mm f/4.5-5.6L IS II

A review of Canon’s new 100-400mm zoom.

  1. Examples Handheld, Beach Wildlife (Canon 5DM3)

Canon-Wide Angle Prime Lenses

Comparing the 16-35mm f/2.8L II to most of Canon’s wide angle prime lenses. Optical performance, ergonomics, focus, build quality..

  1. Correcting Chromatic Aberration in DPP

Canon Ultra-wide Zoom Lenses: 17-40 and 16-35

Comparing the Canon 17-40mm f/4L and 16-35mm f/2.L II..

  1. Vignetting at 17mm
  2. Distortion at 17mm
  3. Vignetting at 21mm
  4. Distortion at 21mm
  5. Vignetting at 24mm
  6. Distortion at 24mm
  7. Vignetting at 35mm
  8. Distortion at 35mm

Nikon AF 16mm f/2.8D Fisheye

Exploring the 16mm fisheye for landscape photography, and correcting fisheye distortion..

  1. Defishing in Capture NX2
  2. Distortion Control in Capture NX2

Nikon AF-S 14-24mm f/2.8G ED

Nikon’s ultra wide angle zoom and the Nikon 14mm f/2.8, critical focus shift behavior..

  1. Correcting Chromatic Aberration

Hartblei 40/80/120mm SuperRotators

Medium format Zeiss glass in Hartblei precision tilt/shift lens barrels!.

  1. Introduction
  2. Resolution chart—40/4
  3. Resolution chart—80/2.8

Rokinon 24mm f/3.5 Tilt-Shift Lens

Perspective control for architecture or landscape as an alternative to Nikon and Canon brand name offerings..

  1. Examples: Stitched Panoramas (D800E, White Mountains)

Samyang 14mm f/2.8

Ultra wide angle lens for Canon and Nikon..

  1. Optics and Focusing
  2. Distortion

Medium Format Magazine

Articles written for MediumFormat.com..

  1. Introduction to Adapting Lenses to Fujifilm GFX: Overview and Experience with Zeiss DSLR Lenses (July 2019)

Phase One XF and XT Full-Frame Medium Format

Phase One XF System, Phase One IQ4, Schneider Kreuznach Lenses.

  1. PhaseOne IQ4 Format Equivalent Focal Length, F-Stop, Depth of Field

Schneider Kreuznach LS 40-80mm f/4-5.6

Mid range zoom 27-54mm equivalent for Phase One XF system.

  1. Aperture Series @ 40mm: Mosaic (IQ4 150)
  2. Aperture Series @ 55mm: Mosaic (IQ4 150)
  3. Aperture Series @ 80mm: Mosaic (IQ4 150)

Fujifilm GFX, General

100 megapixels in a portable package!.

  1. Fujifilm Medium Format Equivalent Focal Length and Depth of Field

Fujifilm GFX100S/100 Comparisons

Is 100 better than 45/50/60 megapixels?.

  1. SHOOTOUT: Fujifilm GFX100S vs Sony A1: Deck and Roof
  2. SHOOTOUT @ 63/50mm: Fujifilm GFX100S vs Sony A7R V Pixel Shift: Creek Bottom at Huge Laurel
  3. SHOOTOUT: Fujifilm GFX100S vs Leica SL2 + Leica SL 50/2 APO: Deck and Roof

Fujifilm GFX 50s

Fujifilm skips full-frame to go from APS-C to to medium format..

  1. Fujifilm Medium Format Equivalent Focal Length and Depth of Field

Adapting Other Lenses to Fujifilm GFX

Adapting lenses delivers degraded results in most cases..

  1. Introduction to Adapting Lenses to Fujifilm GFX: Overview and Experience with Zeiss DSLR Lenses (July 2019)
  2. Aperture Series: Mamiya 150mm f/4.5, Deck and House (GFX100S)

Fujifilm GF 20-35mm f/4 R WR

Compact wide angle.

  1. Distortion and Distortion Correction from 20mm to 35mm
  2. Examples: Focus Stacking
  3. SHOOTOUT @ 20mm/16mm: Fujifilm GFX100S vs Sony A7R V Pixel Shift: Huge Laurel at Bend in Alpine Creek

Fujifilm GF 23mm f/4 R WR

Ultra wide angle equivalent to 19mm f/3.3. .

  1. Distortion Correction and Micro Contrast Losses (GFX 50S)

Fujifilm GF 30mm f/3.5 R LM WR

Compact wide angle.

  1. Distortion for Fujifilm GF 30mm f/3.5 R LM WR
  2. Aperture Series: Mining Structures

Fujifilm GF 32-64mm f/4 R LM WR

Mid-range zoom lens equivalent to 26-53mm f/3.3..

  1. Fujifilm GF 32-64mm f/4: Distortion and Distortion Correction
  2. Shootout @ 50mm vs GF 35-70, GF 32-64/4: Huge Laurel Along Alpine Creek

Fujifilm GF 35-70mm f/4.5-5.6

Compact wide angle.

  1. Distortion and Distortion Correction @ 35mm, 47mm, 63mm, 70mm
  2. Fujifilm GFX100S: Loss of Sharpness with Distortion Correction Even for Near-Zero Distortion Lens
  3. Examples, Focus Stacking: Backyard
  4. Aperture Series @ 35mm: Huge Laurel Along Alpine Creek
  5. Aperture Series @ 40mm: Flowering Trees along Alpine Creek
  6. Aperture Series @ 48mm: Riparian Tree Leafing Out
  7. Aperture Series @ 70mm: Cluster of Bay Laurel Trees by Alpine Creek
  8. Focus Stacking Shootout vs GF 63/2.8: Backyard Deck
  9. Shootout @50mm vs GF 35-70, GF 32-64/4: Huge Laurel Along Alpine Creek
  10. SHOOTOUT: Fujifilm GFX100S vs Sony A1: Deck and Roof

Fujifilm GF 45mm f/2.8 R WR

Moderate wide angle equivalent to 37mm f/2.3..

  1. Distortion and Distortion Correction for Fujifilm GF 45mm f/2.8 R WR

Fujifilm GF 50mm f/3.5 R LM WR

Slightly wide compact normal lens equivalent to 41mm f/2.9..

  1. Distortion and Distortion Correction for Fujifilm GF 50mm f/3.5
  2. Shootout @ 50mm vs GF 35-70, GF 32-64/4: Huge Laurel Along Alpine Creek

Fujifilm GF 63mm f/2.8 R WR

Standard normal lens equivalent to 52mm f/2.3..

  1. Overview of Fujifilm GF 63mm f/2.8 R WR
  2. Distortion
  3. Focus Stacking Shootout vs GF35-70: Backyard Deck

Fujifilm GF 80mm f/1.7 R WR

Standard normal lens equivalent to 66mm f/1.4..

  1. Distortion and Distortion Correction for Fujifilm GF 80mm f/1.7 R LM WR

Fujifilm GF 250mm f/4 OIS R WR

Telephoto equivalent to 200mm lens. .

  1. Stitched Panorama: Mt Whitney Before Sunrise (GFX 50R)
  2. Examples: Eastern Sierra, White Mountains (GFX 50R)

Hasselblad X1D

Mirrorless large format with leaf shutter lenses..

  1. Hasselblad X1D/X2D Format Equivalent Focal Length, Depth of Field

Hasselblad XCD 30mm f/3.5

25mm equivalent..

  1. Distortion
  2. Vignetting
  3. Aperture Series: Mosaic

Hasselblad XCD 35-75mm f3.5-4.5

Normal lens equivqlent to 53mm..

  1. Distortion for Hasselblad XCD 35-75mm f3.5-4.5
  2. Vignetting for Hasselblad XCD 35-75mm f3.5-4.5

Hasselblad XCD 38mm f/2.5 V

Normal lens equivqlent to 32mm..

  1. Vignetting for Hasselblad XCD 38mm f/2.5 V
  2. Distortion for Hasselblad XCD 38mm f/2.5 V

Hasselblad XCD 45mm f/3.5

37mm equivalent..

  1. Distortion
  2. Vignetting

Hasselblad XCD 45mm f/4 P

Moderate wide angle..

  1. Distortion for Hasselblad XCD 45mm f/4 P
  2. Vignetting for Hasselblad XCD 45mm f/4 P

Hasselblad XCD 55mm f/2.5 V

Normal lens equivqlent to 45mm..

  1. Vignetting for Hasselblad XCD 55mm f/2.5 V
  2. Distortion for Hasselblad XCD 55mm f/2.5 V
  3. Aperture Series: Black Rock Lava Flow

Hasselblad XCD 65mm f/2.8

Normal lens equivqlent to 53mm..

  1. Introduction to Hasselblad XCD 65mm f/2.8
  2. Distortion for Hasselblad XCD 65mm f/2.8
  3. Vignetting for Hasselblad XCD 65mm f/2.8

Hasselblad XCD 80mm f/1.9

Moderate telephoto..

  1. Distortion for Hasselblad XCD 80mm f/1.9
  2. Vignetting for Hasselblad XCD 80mm f/1.9

Hasselblad XCD 90mm f/2.5 V

Normal lens equivqlent to 45mm..

  1. Vignetting for Hasselblad XCD 90mm f/2.5 V
  2. Distortion for Hasselblad XCD 90mm f/2.5 V

Hasselblad XCD 90mm f/3.2

Medium format telephoto lens, 74mm equivalent..

  1. Distortion
  2. Vignetting
  3. Bokeh: Out-of-Focus Lights at Night

Hasselblad XCD 120mm f/3.5

Telephoto macro lens, 99mm equivalent..

  1. Distortion
  2. Vignetting

Hasselblad XCD 135mm f/2.8

Moderate telephoto..

  1. Distortion for Hasselblad XCD 135mm f/2.8
  2. Vignetting for Hasselblad XCD 135mm f/2.8

Pentax 645Z Overall

50-Megapixel Medium Format DSLR with Live View.

  1. Image/Sensor Size, and 645Z Focal Length and F-Stop Equivalence vs DSLR
  2. Medium Format vs Full Frame Considerations

Pentax SMC DA 645 25mm f/4 AL (IF) SDM AW

Ultra wide angle lens for Pentax 645..

  1. Distortion

Pentax HD 35mm f/3.5 AL [IF]

Moderate wide angle lens for Pentax 645..

  1. Aperture Series: Dolls, Close Range (645Z)

Hasselblad H4D 50 Megapixel Medium Format DSLR

How does Hasselblad’s 3rd generation medium format entry measure up?.

  1. Lenses
  2. Distortion Correction with the HCD 28mm f/4

Rolleiflex Hy6 Mod 2 Medium Format System

Lens performance at 80 megapixels..

  1. Aperture Series: Down Creek (Zeiss 110/2 Planar PQ)

Leica S2 37.5 Megapixel Medium Format DSLR

How does Leica’s medium format entry measure up in ergonomics, image quality, etc?.

  1. Leica S2 User comments

Leica S Examples

Examples and comparison from the various lenses.

  1. Comparison: Leica S2 vs Nikon D3x (Mosaic)

Lenses

Lenses for the Leica S2 (original Leica S2 material).

  1. Leica 30mm f/2.8 Elmarit-S ASPH
  2. Leica 35mm f/2.5 Summarit-S ASPH

Leica 24mm f/3.5 Super-Elmar-S ASPH

Extreme wide angle with ultra high performance..

  1. Distortion for Leica 24mm f/3.5 Super-Elmar-S ASPH
  2. Vignetting for Leica 24mm f/3.5 Super-Elmar-S ASPH

Leica 30-90mm f/3.5-5.6 Vario-Elmar-S ASPH

All-arounder zoom for Leica S.

  1. Aperture Series @ 30mm: Rushing Water (S006)
  2. Aperture Series @ 90mm: Grass Clumps on Boulders (S006)

Leica 45mm f/2.8 Elmarit-S ASPH

Moderate wide angle with low distortion..

  1. Overview of Leica 45mm f/2.8 Elmarit-S ASPH
  2. Distortion for Leica 45mm f/2.8 Elmarit-S ASPH
  3. Vignetting for Leica 45mm f/2.8 Elmarit-S ASPH

Leica 100mm f/2 Summicron-S ASPH

The fastest S lens..

  1. Distortion for Leica 100mm f/2 Summicron-S ASPH
  2. Vignetting for Leica 100mm f/2 Summicron-S ASPH

Milvus 15mm f/2.8

Milvus garb for the venerable 15/2.8 Distagon, with improved lens coating..

  1. MTF for Milvus 15/2.8
  2. Vignetting for Milvus 15/2.8
  3. Distortion for Milvus 15/2.8
  4. Aperture Series vs Nikon 14/2.8D: Alpine Creek Low View

Milvus 18mm f/2.8

An outstanding 18mm design..

  1. MTF for Milvus 18/2.8 from f/2.8 to f/16
  2. Vignetting for Milvus 18/2.8
  3. Distortion for Milvus 18/2.8

Milvus 21mm f/2.8

The classic 21/2.8 Distagon improved..

  1. Vignetting for Milvus 21/2.8
  2. Distortion for Milvus 21/2.8

Milvus 25mm f/1.4

Highest performing 25mm from Zeiss ever..

  1. Vignetting for Milvus 25/1.4
  2. Distortion for Milvus 25/1.4
  3. Aperture Series: Large Boulder, Waterfall, Last Light on Canyon Ridge
  4. Aperture Series: Colorful Green Boulder, Last Sunset Glow
  5. Aperture Series + Focus Stack: Healthy BristleconeBark

Milvus 35mm f/1.4

Highest performing 35mm from Zeiss ever..

  1. Vignetting for Milvus 35/1.4
  2. Distortion for Milvus 35/1.4

Milvus 35mm f/2

Classic design in the latest Milvus build..

  1. Vignetting for Milvus 35/2
  2. Distortion for Milvus 35/2

Milvus 50mm f/1.4

Outstanding build and optical quality in a normal lens..

  1. Vignetting for Milvus 50/1.4
  2. Distortion for Milvus 50/1.4
  3. Aperture Series: Yellow Flowers by Waterfall (Nikon D810)
  4. Aperture Series: Sunrise over Cold Creek (Nikon D810)
  5. Aperture Series: Four Aspens, Late Dusk (Sony A7R II)

Milvus 50mm f/2M

The classic 50/2 Makro-Planar improved..

  1. Vignetting for Milvus 50/2M
  2. Distortion for Milvus 50/2M

Milvus 85mm f/1.4

Outstanding build and optical quality in a medium tele..

  1. Vignetting for Milvus 85/1.4
  2. Distortion for Milvus 85/1.4
  3. Aperture Series: Beaver Pond at Dusk (Nikon D810)
  4. Aperture Series: Yellow Flowers by Waterfall (Nikon D810)
  5. Aperture Series: Yellow Flowers Closeup (Nikon D810)

Milvus 100mm f/2M

The classic 100/2 Makro-Planar improved..

  1. Vignetting for Milvus 100/2M
  2. Distortion for Milvus 100/2M
  3. Bokeh Aperture Series: Wild Onion and Shining Lake
  4. Macro Examples: Shape of Out of Focus Specular Bokeh
  5. Color Correction Shootout vs Sigma 105/1.4A, Nikon 105/2 DC

Milvus 135mm f/2

An Otus, in effect. Milvus garb for the 135/2 APO, with improved lens coatings on one element. See the ZF.2/ZE 135/2 review pages..

  1. Vignetting for Milvus 135/2
  2. Distortion for Milvus 135/2

Optical Performance

Sharpness and rendering..

  1. Modulation Transfer Function (MTF) Discussion
  2. Sample Variation

15mm f/2.8 Distagon

Ultra high performance in an extreme wild wide angle lens..

  1. 15/2.8 MTF Chart
  2. 15/2.8 Distortion
  3. 15/2.8 Vignetting
  4. Vignetting/Depth of Field Aperture Series (Church Interior)
  5. Aperture Series: Surreal Bristlecones at High Altitude, Generations (Nikon D810)

18mm f/3.5 Distagon

A brilliant, but also colorful character..

  1. MTF Chart
  2. Distortion
  3. Distortion vs Nikon 14-24mm f/2.8G
  4. Vignetting
  5. Vignetting and Color Shading vs Nikon 14-24mm
  6. Color Fringing (Aspen, Nikon D800E)
  7. Examples (White Mountains, Nikon D800E)
  8. Examples ZE/Canon NYC
  9. Comparisons Overview
  10. Compared with Canon EF 16-35mm f/2.8L II - Mosaic
  11. Resolution Chart

ZF.2/ZE 21mm f/2.8 Distagon

Brilliant imaging, even wide open, but with a few quirks. (Review in progress) .

  1. 21/2.8 Distagon Main Page
  2. Distortion
  3. Distortion vs Nikon 14-24/2.8G
  4. Field Illumination (Vignetting) and Off-Center Color Balance
  5. Examples
  6. Examples ZE/Canon NYC
  7. Rendering Style at f/2.8, f/4, f/8: Aspen Thicket
  8. Aperture Series: Pine Creek Tungsten Mine Buildings / Waterfall (Nikon D800E)
  9. Aperture Series: Eroding Ancient Bristlecone Pine (Nikon D800E)
  10. vs Canon 16-35/2.8L II
  11. vs Nikon 14-24/2.8G

25mm f/2 Distagon

Ultra high performance with a fast aperture..

  1. Distortion
  2. 25/2 Vignetting
  3. Examples (Yosemite, White Mountains)
  4. Aperture Series: Backlit Bristlecone (Nikon D800E)
  5. Compared: 25/2 vs 25/2.8 (Bristlecone View of White Mountain Peak, Nikon D800E)
  6. Comparison: 25/2 Distagon vs Canon 24mm ƒ/1.4L II (Creek)
  7. Comparison: 25/2 Distagon vs Nikon 24/1.4G (Tile Roofs)
  8. Comparison: 25/2 Distagon vs 25/2.8 Distagon, Nikon 24/1.4G (Water Tanks)

25mm f/2.8 Distagon

A gem with unusual close-focus..

  1. MTF Chart
  2. 25/2.8 Vignetting
  3. 25/2.8 Distortion
  4. Examples

28mm f/2 Distagon

An artist’s drawing tool..

  1. Vignetting
  2. Examples — Miscellaneous
  3. Examples — Environmental Portraits
  4. Comparison—Nikon D3
  5. 28/2 Distagon vs Nikon 24-70/2.8G, Nikon 16-35/4G VR, Nikon 28/2
  6. 28/2 Distagon vs Voigtlander Color Skopar 28/2.8 SL II, Nikon 28/2 AIS, Nikon AF-S 28/1.8G
  7. Aperture Series: Lundy Canyon Beaver Dam (Nikon D800E)
  8. Aperture Series: Creekside Yellow Flowers and Dark Rocks, Lundy Creek (Nikon D810)
  9. Aperture Series: Twisted Aspen (Nikon D810)
  10. Aperture Series: Four Aspens, Late Dusk (Sony A7R II)
  11. Resolution Chart

35mm f/1.4 Distagon

Strokes of a master..

  1. Distortion For 35/1.4 Distagon
  2. Discussion of 35/1.4 vs Alternatives
  3. Lateral Chromatic Aberration (Color Fringing) 35/1.4 vs 35/2
  4. 35/1.4 Distagon Longitudinal Chromatic Aberration (LOCA)
  5. Examples In The Forest
  6. Aperture Series: Pine Creek Tungsten Mine Buildings / Waterfall
  7. Aperture Series: Bristlecone Vista, Late Dusk (Canon 5DS R)
  8. 35/1.4 Distagon Spherical Aberration Assessment
  9. Comparison — Zeiss ZE 35 f/2 (Mosaic)
  10. vs Sigma 35/1.4 and Nikon 35/1.4G (Nikon D800E, Dolls)
  11. vs Sigma 35/1.4 and Nikon 35/1.4G (Nikon D800E, Wheel)

35mm f/2 Distagon

Balance and poise..

  1. vs Nikon 24-70/2.8G, Nikon 16-35/4G VR, Nikon 35/1.4
  2. vs 35/1.4 Distagon and Sigma 35/1.4 (D800E, Creek Storm Damage)

50mm f/1.4 Planar

Brilliant imaging in a compact package..

  1. 50/1.4 Planar Vignetting
  2. 50/1.4 Planar Distortion
  3. Resolution Chart

50/1.4 Planar vs 50/2 Makro-Planar

Comparing the two 50mm options near and far, more comparisons coming..

  1. 50/1.4 vs 50/2 Take 2 — Mine Engine
  2. 50/1.4 vs 50/2 At ~4 foot range
  3. 50/1.4 vs 50/2 vs Nikon 50/1.4G — Gears

50mm f/2 Makro-Planar

Versatility in a “normal” lens and macro too!.

  1. 50/2 Makro Planar Distortion
  2. 50/2 Makro Planar Vignetting

Otus 28mm f/1.4 APO-Distagon

Fast high performance APO wide angle..

  1. Vignetting for Zeiss Otus 28/1.4
  2. Distortion for Zeiss Otus 28/1.4
  3. Aperture Series: Secondary Color (SLOCA) and Field Curvature at Close Range

Otus 55mm f/1.4 APO-Distagon

Ultra high performance apochromatic normal lens, first in the Otus line..

  1. Otus 55/1.4 APO-Distagon Press Releases
  2. Vignetting
  3. Distortion
  4. The Medium Format 'Look'
  5. Whither Longitudinal Chromatic Aberration?
  6. Secondary Color Aberrations and Point Spread Function vs 50/2 Makro-Planar + Canon 50/1.2L, 50/1.4 (5D Mark III, Barn Interior)

Otus 85mm f/1.4 APO-Planar

Ultra high performance apochromatic medium telephoto, overview and technical..

  1. Vignetting for Otus 85/1.4 APO-Planar
  2. Distortion for Otus 85/1.4 APO-Planar

Otus 85mm f/1.4 APO-Planar Rendering Style

Rendering style, bokeh and 'transparency' without peer..

  1. Aperture Series: Early Yellow Aspen (Nikon D810)
  2. Aperture Series: Pine Creek Riparian Tree Medley (Nikon D810)

Otus 100mm f/1.4 APO-Sonnar

Razor sharp with gorgeous bokeh..

  1. Overview of Zeiss Otus 100mm f/1.4 APO-Sonnar
  2. Vignetting for Zeiss Otus 100mm f/1.4 APO-Sonnar
  3. Vignetting on the 44 X 33mm Sensor of the Fujifilm GFX100
  4. Distortion for Zeiss Otus 100mm f/1.4 APO-Sonnar
  5. Examples: Flowers, Plants, Ad-Hoc (Nikon D850)
  6. Examples: Campus, Late Day (Nikon D850)

85mm f/1.4 Planar

True-to-life imagery..

  1. Distortion
  2. Vignetting

100mm f/2 Makro-Planar

King of bokeh! Corner-to-corner sharpness, world class..

  1. Distortion
  2. Vignetting / Relative Illuminance
  3. Examples: Lundy Canyon, Early Winter
  4. Violet Fringing (LOCA) vs Aperture (Sunlit Water Bottles)

135mm f/2 APO-Sonnar

Beautiful bokeh, razor sharp, superb color correction..

  1. 135/2 APO-Sonnar Main Page
  2. Distortion
  3. Vignetting
  4. 135/2 Zeiss Press release
  5. Alignment (D800E, Distance Scene)
  6. Compared to Nikon 135mm f/2 DC (D800E, Rulers on Table)
  7. Compared to Canon 135mm f/2L (Canon 5D Mark III, Dolls)
  8. APO Behavior vs Leica R APO 100/2.8 and 180/2.8

Conclusions

Summary and wrap-up..

  1. Glossary

Zeiss LensSpire Articles

Articles written for Lenspire.ZEISS.com..

  1. Micro Contrast and the Zeiss 'Pop'
  2. Zeiss Fills Out the Milvus DSLR Lens Lineup with the 21/2.8, 35/2, 50/2M, 100/2M
  3. Astrophotography Tips, Especially with Zeiss Otus 28mm f/1.4 APO-Distagon

Binoculars

What to look for in a binocular, plus reviews..

  1. Brightness: Magnification, Objectives, Exit Pupil
  2. Reader Comments: Evaluating 25+ Binoculars in 2016

Understanding optics

Understanding lens performance..

  1. Understanding Lens Distortion
  2. Understanding Modulation Transfer Function (MTF)
  3. Understanding Field Curvature
  4. Understanding Lens Flare
  5. Charles Sleicher Resolution Chart

Diffraction

The limits of resolution are governed by physics..

  1. Diffraction in Consumer Digicams: When Megapixels Go Poof

Subjective Lens Qualities

Also known as shading..

  1. Vignetting—Drawback or Artistic Feature?

Focus

Focus accuracy and focus shift..

  1. Star Focusing and Circular Blobs

Misc Reviews

Miscellaneous reviews..

  1. Nikon D3: Noise from ISO 100 to ISO 25,600
  2. Nikon 70-200mm f/2.8 VR: Mush In the Corners
  3. Canon EOS Meets Leica—1D Mark III mated to APO-Summicron-R 90/2 ASPH
  4. Canon EOS Meets Leica—1D Mark III Mated to APO-Elmarit-R 180/2.8
  5. An Hour With the Hasselblad 503CWD
  6. An Hour With the Hasselblad H3D
  7. Thirty Minutes With the PhaseOne P20
  8. Three Different Tripods — Gitzo, Manfrotto, Oben

Lens and Camera Issues

Good stuff and not so good stuff..

  1. Lens Mount Damage and Misalignment
  2. Color Temperature & Noise with Digital Cameras
  3. Pushing the Blacks—Nikon D3x: medium format quality in a DSLR?
  4. Reducing Digital Camera Noise Using Multiple Exposures

Brand-new Blur

Blurry lenses right out of the box..

  1. Brand-new Blur Overview
  2. Blurry Canon EF 70-200mm f/4L IS
  3. Blurry Canon EF85mm f/1.8
  4. Blurry Canon EF 100mm f/2.8 IS
  5. Blurry Nikon AF-S 70-200mm f/2.8G VR II
  6. Blurry Nikon AF-S 300mm f/2.8G VR II
  7. Asymmetry with Leica 180mm f/3.5 APO-Elmar-S
  8. How to Test a Lens for Issues

Software issues.

[ARCHIVE] Software and related for photographers..

  1. Eliminating color fringing with Nikon Capture
  2. Goodbye Nikon?

Photo Tips

Photography Hints and Tips..

  1. Depth of Field Is Oh-So-Shallow

Overview of Zeiss Touit Lenses

High performance prime lenses for Sony NEX and Fujifilm X..

  1. Touit Optics: Manual / Autofocus, Lens Design
  2. Zeiss Touit Lens Correction on Sony NEX and Fujifilm X

Viewfinder and LCD Viewing Aids

Accurate focus and ease for your eyes..

  1. Viewing The Camera’s LCD — Zacuto Z-Finder
  2. Viewing The Camera’s LCD — Zacuto EVF Electronic Viewfinder

Zeiss ZF.2 and Zeiss ZE Lenses For Canon and Nikon

Zeiss ZF.2 and Zeiss ZE Lenses For Canon and Nikon.

  1. Mini Review: Zeiss ZF/ZE 21mm f/2.8 Distagon
  2. Mini Review: Zeiss ZF/ZE 28mm f/2 Distagon
  3. Mini Review: Zeiss ZF/ZE 35mm f/2 Distagon
  4. Mini Review: Zeiss ZF/ZE 50mm f/1.4 Planar
  5. Mini Review: Zeiss ZF/ZE 50mm f/2 Makro-Planar
  6. Mini Review: Zeiss ZF/ZE 85mm f/1.4 Planar

15mm f/2.8 Distagon Zeiss Interview

Q&A on the 15/2.8 Distagon with Dr. Hubert Nasse.

  1. Zeiss 15/2.8 Distagon Q&A — Design Goals
  2. Zeiss 15/2.8 Distagon Q&A — Distortion
  3. Zeiss 15/2.8 Distagon Q&A — Vignetting

Hartblei 40/80/120mm SuperRotators

Medium format Zeiss glass in Hartblei precision tilt/shift lens barrels!.

  1. Introduction
  2. Resolution chart—40/4
  3. Resolution chart—80/2.8

Leica S2 37.5 Medium Format DSLR

Leica S2 37.5 megapixel DSLR and its lenses..

  1. Leica 35mm f/2.5 Summarit-S ASPH
  2. Reader Comments

Lenses for Leica M8, Leica M9, M*

Lenses for Leica M cameras, especially the M9.

  1. Leica 35mm f/2 Summicron-M ASPH
  2. Leica Noctilux-M 50mm f/0.95 ASPH
  3. Zeiss ZM 50mm f/1.5 C-Sonnar T*
  4. Zeiss ZM 85mm f/4 Tele-Tessar T*

Infrared

Beyond deep red, seeing the invisible..

  1. Introduction to Digital Infrared Photography

Infrared Cameras Compared

Infrared Cameras Compared: Fuji S3 Pro UVIR, Nikon D70-IR, Canon EOS 5D-IR ..

  1. Main Page

Nikon D200 vs D2x

Vintage 2006 comparative review of Nikon D200 vs Nikon D2x..

  1. LensAberrations
  2. LensEvaluations

Canon RF 14-35mm f/4L IS USM

Compact ultra-wide zoom..

  1. Distortion and Distortion Correction

Canon RF 15-35mm f/2.8L IS USM

Fast ultra wide zoom lens..

  1. Distortion and Distortion Correction

Canon RF 24-70mm f/2.8L IS USM

Fast standard zoom lens..

  1. Distortion and Distortion Correction
  2. Shootout @ 35mm vs Canon RF 14-35/4L: Alabama Hills Drainage, View to Mt Whitney

Canon RF 24-105mm f/4L IS USM

Bread and butter all-around zoom..

  1. Color Fringing (Lateral Chromatic Aberration) with/without Correction

Canon RF 28-70mm f/2L USM

Bread and butter all-around zoom..

  1. Lateral Chromatic Aberration

Canon RF 50mm f/1.8 STM

Compact ultralight standard lens..

  1. Introduction to Canon RF 50mm f/1.8 STM
  2. Aperture Series: Upper Pine Creek
  3. Aperture Series: Pine Creek Tungsten Mine, Aerial View

Canon RF 600mm f/11 IS STM

Super telephoto, ultra slow aperture..

  1. Introduction to Canon RF 600mm f/11 IS STM

Canon RF 800mm f/11 IS STM

Super telephoto, ultra slow aperture..

  1. Introduction to Canon RF 800mm f/11 IS STM

Nikon NIKKOR Z 20mm f/1.8 S

Fast ultra wide angle for Nikon Z..

  1. Distortion and Distortion Correction

Nikon NIKKOR Z 24mm f/1.8 S

Fast wide angle for Nikon Z..

  1. Distortion and Distortion Correction

Nikon NIKKOR Z 14-24mm f/2.8 S

Ultra-wide fast zoom..

  1. Introduction to Nikon NIKKOR Z 14-24mm f/2.8 S

Nikon NIKKOR Z 14-30mm f/4 S

Ultra wide compact zoom for Nikon Z cameras..

  1. MTF for Nikon NIKKOR Z 14-30mm f/4 S
  2. Distortion for Nikon NIKKOR Z 14-30mm f/4 S at 14mm, 19.5mm, 30mm
  3. Aperture Series @ 14mm: Three Paths at Night
  4. Aperture Series @ 14mm: Mosaic
  5. Aperture Series @ 14mm: Mem Chu and Quadrangle

Nikon NIKKOR Z 24-70mm f/2.8 S

Fast mid-range zoom expressly designed for Nikon Z cameras..

  1. MTF for Nikon NIKKOR Z 24-70mm f/2.8 S
  2. Overview of Distortion for Nikon NIKKOR Z 24-70mm f/2.8 S
  3. Distortion @ 24mm, 28mm for Nikon NIKKOR Z 24-70mm f/2.8 S
  4. Distortion @ 70mm, 50mm, 35mm for Nikon NIKKOR Z 24-70mm f/2.8 S

Nikon NIKKOR Z 24-70mm f/4 S

Mid-range zoom expressly designed for Nikon Z cameras..

  1. MTF for Nikon NIKKOR Z 24-70mm f/4S
  2. Aperture Series @ 24mm: Summit View at Dusk Over Upper Conness Lake

Nikon NIKKOR Z 35mm f/1.8 S

Moderate wide angle expressly designed for Nikon Z cameras..

  1. Aperture Series: Creekside Aspen

Nikon NIKKOR Z 50mm f/1.2 S

Ultra-wide fast zoom..

  1. Introduction to Nikon NIKKOR Z 50mm f/1.2 S

Sony Alpha A7R

Full frame compact mirrorless with interchangeable lenses..

  1. Automatic Correction for Lateral Chromatic Aberration in Adobe Camera Raw
  2. Sony A7R: Vignetting and Lens Comp
  3. Sony A7R: 'Shading Comp' Bug?

Sony Alpha A7R II Kolarivision for Leica M

A7R II modified sensor cover glass for Leica M lens performance..

  1. A7R II Kolarivision Mod: Leica 18mm f/3.8 Super-Elmar-M ASPH
  2. A7R II Kolarivision Mod: Leica 28mm f/1.4 Summilux-M ASPH
  3. II Kolarivision Mod: Leica 50mm f/2 APO-Summicron-M ASPH

Sony FE 14mm f/1.8 GM

Ultra high performance extreme wide angle..

  1. Optical Distortion for Sony FE 14mm f/1.8 GM

Sony FE 24mm f/1.4 GM

High performance wide angle..

  1. Distortion for Sony FE 24mm f/1.4 GM
  2. Aperture Series: Quadrangle Shadows and Rising Moon

Sony FE 24mm f/2.8 G

High performance, high speed..

  1. Introduction to Sony FE 24mm f/2.8 G
  2. MTF for Sony FE 24mm f/2.8 G
  3. Distortion Correction for Sony FE 24mm f/2.8 G, Adobe Camera Raw
  4. Aperture Series: Deck Planks — Getting Optimal Results by Understanding Focus Shift, Field Curvature, Distortion Correction
  5. Aperture Series: Fenceline, with/without Distortion Correction

Sony FE 28mm f/2

Fast wide angle..

  1. Apertures Series: Dolls at Close Range (Sony A7R)
  2. Distortion for Sony 28mm f/2 (Examples)
  3. Aperture Series: Knobby Boulder (A7R)

Sony FE 35mm f/1.4 GM

High performance mild wide-angle..

  1. Optical Distortion for Sony FE 35mm f/1.4 GM
  2. Aperture Series: Mining Cabin Interior

Sony FE 35mm f/1.4 Distagon ZA

Fast and gorgeous moderate wide angle Zeiss design..

  1. Portraits (A7R)

Sony Planar T* FE 50mm f/1.4 ZA

Fast high performance normal lens of Zeiss design..

  1. Evaluation of Secondary Color: Chrome Grating (Sony A7R II)
  2. Examples @ f/1.4: Metal, Backlighting and More (Sony A7R II)

Sony FE 35mm f/2.8 ZA Sonnar

Compact moderate wide angle for Sony mirrorless..

  1. Distortion for Sony FE 35mm f/2.8 ZA Sonnar
  2. Aperture Series: Grass in Pot by Bench (Sony A7R)

Sony FE 50mm f/1.2 GM

High performance, high speed..

  1. MTF for Sony FE 50mm f/1.2 GM
  2. Design Challenges for Sony FE 50mm f/1.2 GM
  3. Distortion and Distortion Correction for Sony FE 50mm f/1.2 GM
  4. Examples: Old Talc Mine
  5. Examples: Dreamy Drawing (Backyard)

Sony FE 55mm f/1.8 ZA Sonnar

Compact normal lens for full-frame Sony mirrorless..

  1. Aperture Series: Creek Wends its Way Through Boulders (Sony A7R)

Sony FE 85mm f/1.4 GM

Top-grade medium telephoto..

  1. Aperture Series: Aspen Trunks at Rock Creek
  2. Shootout vs Zeiss Batis 85mm f/1.8 (Dolls, A7R II)
  3. Compared: Sony 85mm f/1.4 GM vs Zeiss Loxia 85mm f/2.4: Portraits at Tenaya Pool

Sony FE 100mm f/2.8 STF GM

Razor sharp medium telephoto with apodization filter..

  1. Aperture Series: Dolls (A7R II)

Sigma FE 14-24mm f/2.8 DG DN Art

Native-mount ultra wide angle high performance zoom for mirrorless..

  1. Distortion @ 14mm
  2. Distortion @ 24mm
  3. Aperture Series @ 14mm: Teak Bench Closeup
  4. Aperture Series @ 24mm: Teak Bench Closeup

Sigma FE 24-70mm f/2.8 DG DN Art

Native-mount mid-range zoom for mirrorless..

  1. Overview of Sigma 24-70mm f/2.8 DG DN Art

Sigma FE 28mm f/1.4 DG HSM Art

Outstanding wide angle, watch out for lens skew..

  1. Vignetting
  2. Distortion

Sigma FE 35mm f/1.2 DG DN Art

Ultra high speed native-mount moderate wide angle..

  1. MTF for Sigma 35mm f/1.2 DG DN Art, Fantasy vs Reality
  2. Distortion Correction for Sigma 35mm f/1.2 DG DN Art

Sigma FE 35mm f/1.4 DG DN Art

Fast native-mount moderate wide angle..

  1. Distortion for Sigma FE 35mm f/1.4 DG DN Art

Sigma FE 35mm f/2 DG DN Contemporary

Compact native-mount wide angle..

  1. Distortion for Sigma 35mm f/2 DG DN
  2. Distortion Correction Impacts for Sigma 35mm f/2 DG DN
  3. Examples: Backyard

Sigma FE 85mm f/1.4 DG DN Art

Ultra high performance medium telephoto..

  1. MTF for Sigma 85mm f/1.4 DG DN Art
  2. Distortion
  3. Distortion Correction Impact on Micro Contrast and Sharpness
  4. Micro Contrast, Moiré, Color Aliasing with/without Pixel Shift and Distortion Correction
  5. Aperture Series, Close Range: Dolls (with and without Distortion Correction)
  6. Aperture Series: Campito the Feral Stallion Grazing in Blue Dusk
  7. Aperture Series: Mining Hoist
  8. Sigma 85mm f/1.4 DG DN Art: Conclusions

Sigma FE 105mm f/1.4 DG HSM Art

Highly corrected medium telephoto..

  1. Overview of Sigma 105mm f/1.4 DG HSM Art
  2. Examples: Alabama Hills

Sigma FE 70mm f/2.8 DG Macro Art

Macro lens also excellent for all-around shooting..

  1. Aperture Series: Mt Conness Southern Ridge

Voigtlander FE Super Wide-Heliar 15mm f/4.5 Aspherical III

Ultra wide native mount manual focus lens for Sony mirrorless..

  1. Distortion Uncorrected and Corrected
  2. Aperture Series: Mosaic (Sony A7R II)

Voigtlander FE 35mm f/1.2 Aspherical

Fast mild wide angle lens..

  1. Distortion for Voigtlander FE 35mm f/1.2 Aspherical

Voigtlander FE Nokton Classic 35mm f/1.4

Fast lens speed with curious rendering..

  1. Aperture Series: Sprinter Van at Sunrise

Voigtlander FE 35mm f/2 APO-Lanthar Aspherical

High-grade manual focus wide-normal lens..

  1. Optical Distortion for Voigtlander FE 35mm f/2 APO-Lanthar Aspherical

Voigtlander FE Nokton 40mm f/1.2 Aspherical

Fast lens speed for versatile rendering..

  1. Aperture Series: Milling Lathe

Voigtlander FE 50mm f/2 APO-Lanthar Aspherical

High-grade manual focus normal lens..

  1. Vignetting for Voigtlander 50mm f/2 APO-Lanthar Aspherical
  2. Distortion for Voigtlander 50mm f/2 APO-Lanthar Aspherical
  3. Aperture Series: Painting of Idyllic Ocean on Burned-Out Van

Voigtlander FE 65mm f/2 Macro APO-Lanthar Aspherical

Ultra high grade performer at a modest price..

  1. Aperture Series: Dolls
  2. Aperture Series: Blue Bike in Blue Light
  3. Aperture Series: Dumpster Faux Lighting
  4. Aperture Series: Mosaic (Sony A7R II)

Mitakon Zhongyi Speedmaster 50mm f/0.95

Speed to match the Leica Noctilux..

  1. Aperture Series: Japanese Dolls (A7R II)

Sony FE 12-24mm f/2.8 GM

Fast extreme wide angle zoom..

  1. Distortion for Sony FE 12-24mm f/2.8 GM
  2. Examples: Lundy Canyon

Sony FE 12-24mm f/4 G

Extreme wide angle zoom..

  1. Distortion Examples @ 12mm, Uncorrected and Corrected
  2. Distortion Examples @ 17mm, Uncorrected and Corrected
  3. Distortion Examples @ 24mm, Uncorrected and Corrected

Sony FE 16-35mm f/4 ZA OSS Vario-Tessar

Comapact ultra-wide zoom for Sony full frame mirrorless..

  1. Distortion Examples @ 16mm / 17mm
  2. Distortion Examples @ 20mm / 21mm
  3. Distortion Examples @ 24mm
  4. Distortion Examples @ 28mm
  5. Distortion Examples @ 35mm
  6. Aperture Series @ 21mm: Yellow and Blue Bike, Focus Shift (Sony A7R)
  7. Aperture Series @ 25mm: Yellow and Blue Bike Close, Focus Shift (Sony A7R)
  8. Aperture Series @ 35mm: Yellow and Blue Bike Close, Focus Shift (Sony A7R)

Sony FE 20-70mm f/4 G

Wide range zoom aimed at bloggers..

  1. MTF Charts for Sony FE 20-70mm f/4 G
  2. Sony FE 20-70mm f/4 G Distortion @ 20mm, 24mm, 35mm, 50mm, 65mm

Sony FE 24-70mm f/2.8 GM

Premiere mid-range zoom for Sony full frame mirrorless.

  1. Distortion @ 24mm: Uncorrected vs Corrected
  2. Distortion @ 35mm: Uncorrected vs Corrected
  3. Distortion @ 50mm: Uncorrected vs Corrected
  4. Distortion @ 70mm: Uncorrected vs Corrected
  5. Aperture Series @24mm: Finely Detailed Mosaic
  6. Aperture Series @35mm: Finely Detailed Mosaic
  7. Aperture Series @50mm: Finely Detailed Mosaic
  8. Aperture Series @52mm: Strongly Backlit MTB
  9. Aperture Series @70mm: Finely Detailed Mosaic

Sony FE 24-70mm f/4 OSS Vario-Tessar

Comapact mid-range zoom for Sony full frame mirrorless.

  1. Sony FE 24-70mm f/4 OSS Vario-Tessar Introduction
  2. Distortion and Color Fringing @ 24mm
  3. Distortion and Color Fringing @ 43mm
  4. Distortion and Color Fringing @ 70mm

Sony FE 24-105mm f/4 G OSS

Wide angle to telephoto zoom with optical stabilization..

  1. Distortion Correction @ 24mm: Loss of Sharpness and Micro Contrast (Pixel Shift)
  2. Distortion @ 35mm: Corrected vs Uncorrected
  3. Distortion Correction @ 105mm: Loss of Sharpness and Micro Contrast (Pixel Shift)
  4. Aperture Series @ 50mm: Mosaic
  5. Aperture Series @ 70mm: Mosaic

Sony FE 24-240mm f/3.5-6.3 OSS

10X superzoom..

  1. Examples: Glacier Canyon, Mt Dana (A1)
  2. Aperture Series: Backlit Trail, Glacier Canyon (A1)

Sony FE PZ 28-135mm f/4G OSS

Wide mid-range zoom targeted at video shooters..

  1. Aperture Series @ 135mm: Dolls (A7R II)

Sony FE 70-200mm f/2.8 GM OSS

Barely good-enough telephoto zoom for Sony full frame mirrorless.

  1. Examples: Sharpness in the Field, Focusing, Lens Quality Issues

Sony FE 200-600mm f/5.6-6.3 G OSS

Hand-holdable super telephoto zoom..

  1. Examples: White Mountains, Far Distance

Sony FE 600mm f/4 GM OSS

Hand-holdable super telephoto zoom..

  1. Introduction to Sony FE 600mm f/4 GM OSS

Venus Optics Laowa 12mm f/2.8 Zero-D

Extreme wide angle with 'zero distortion'..

  1. Overview of Venus Optics Laowa 12mm f/2.8 Zero-D
  2. Aperture Series: Milling Lathe
  3. Aperture Series: Trona Train Track Just After Sunset
  4. Aperture Series: Train Boxcar and Blue Sky at Dusk
  5. Aperture Series: Train Boxcar, Oblique View
  6. Optical Distortion vs Perspective 'Distortion'

Venus Optics Laowa 15mm f/4 Macro

Extreme wide angle macro lens for Sony mirrorless..

  1. Overview of Venus Optics Laowa 15mm f/4 Macro
  2. Examples: Backyard Closeups

Venus Optics Laowa 105mm f/2 STF

Manual focus apodized lens for ultra smooth focus..

  1. Venus Optics Laowa 105mm f/2 STF
  2. Aperture Series: Storm Clouds Over Kolob Canyons Peaks

Ricoh GXR with A12 Mount for Leica M Lenses.

Use Leica M lenses on a digital back designed for them..

  1. Ricoh GXR with A12 Mount for Leica M Lenses

Fujifilm Finepix X100

The best compact big-sensor digital camera yet?.

  1. Lens Distortion Evaluation

Sony Cybershot RX1R II

Diminutive full-frame camera with 35mm f/2 fixed lens..

  1. Distortion Uncorrected vs Corrected

Sony Cybershot DSC-RX1 / RX1R

Full frame camera in an ultra-compact body with or without anti-aliasing filter..

  1. Distortion, Correcting Distortion (RX1)
  2. Optical Distortion (RX1R)
  3. Color Shading / Vignetting (RX1)
  4. Aperture Series, Close Range (RX1, Dolls)
  5. Aperture Series (Sony RX1, Mountain Bike)
  6. Aperture Series: Sunset Bristlecone (RX1R)

Sony DSC-RX100

Stunningly high image quality in a 20MP point and shoot tiny camera..

  1. RX100 Built-in Distortion Correction for JPEG
  2. RX100 JPEG vs RAW: Color/Contrast/Detail

The Four Thirds and Micro Four Thirds Format

General things to know about Four Thirds and Micro Four Thirds..

  1. Depth of Field for 4/3 and Micro 4/3

Olympus Zuiko 12-40mm f/2.8 PRO Zoom

A high performance mid-range zoom..

  1. Aperture Series: Boulder Logjam in Lundy Canyon (12mm, EM1)

Olympus M.Zuiko Digital ED 300mm f/4 IS PRO

Super telephoto with superb bokeh and color correction..

  1. Examples: Flowers and More in Cottonwood Canyon, Death Valley

Panasonic Lumix G 8mm f/3.5 Fisheye

A fisheye with great contrast and high resolving power..

  1. Aperture Series: Wyman Cabin

Sigma DN 19mm f/2.8

Wide angle for Micro Four Thirds or Sony E Mount/NEX..

  1. Examples (Initial Misc)
  2. Chromatic Aberration

Panasonic Leica DG Nocticron 42.5mm f/1.2 ASPH

Fast, bright and highly corrected medium telephoto..

  1. vs Voigtlander Nokton: Olympic Bar (EM1)

Venus Optics Laowa 7.5mm f/2 fisheye

Rectilinear fisheye lens for Micro Four Thirds..

  1. Venus Optics Laowa 7.5mm f/2 fisheye

Olympus OM-D E-M1

A worthy upddate to the E-M5 with pro-grade build quality..

  1. Raw Conversion Silent Auto Corrections with ACR

Olympus OM-D E-M5

Superb ergonomic design in a compact camera..

  1. RAW Conversion in DxO Optics Pro
  2. 12mm Comparison: Olympus SHG 7-14mm f/4 — Olympus 12mm f/2 — Panasonic 7-14mm f/4 and 12-35mm f/2.8 (Garage Bikes)
  3. 14mm Comparison: Olympus SHG 7-14mm f/4 — SHG 14-35mm f/2 — Panasonic 14mm f/2.5 and 7-14mm f/4 — 12-35mm f/2.8 (Garage Bikes)
  4. Compared: Olympus 50/2 Macro — Panasonic/Leica 45/2.8 Macro — Olympus 45/1.8 (Dolls)
  5. Correcting color aberrations with the 12mm f/2

Comparisons across format.

Can smaller sensor cameras compete with larger ones on any basis?.

  1. Pancake Lens Shootout: Olympus E-M5 vs Canon 1D X (Dolls)
  2. Shootout: Sony RX1 vs Sigma DP2 Merrill vs Fujifilm X-E1 (MTB)

Fujifilm X-Pro2

Fujifilm's 24MP APS-C offering..

  1. JPEG vs RAW SHOOTOUT: Fine Wood Detail in Green Barn

Fujifilm Fujinon XF 56mm f/1.2

A bright short telephoto lens..

  1. Aperture Series: Picnic Table (X-T1)

Sony NEX-7 and NEX-5N

24 or 16 megapixels in a compact body with APS-C sensor..

  1. Table of Ray Angles for Zeiss ZM Lenses

Zeiss 24mm f/1.8 for Sony NEX

Moderate wide angle for Sony NEX..

  1. Sony 24mm ƒ/1.8 Sonnar Aperture Series (Focus Shift)

Metabones SpeedBooster for Sony NEX

Use DSLR lenses at ~native focal length, and gain a stop of speed..

  1. SpeedBooster + Canon 15/2.8 Fisheye (NEX-6, MTB)
  2. SpeedBooster + Zeiss 21/2.8 Distagon (NEX-6, MTB)
  3. Compared: SpeedBooster + 35mm Lenses (NEX-6, MTB + Doll)
  4. SpeedBooster + Canon 85/1.2L II (NEX-6, MTB)
  5. SpeedBooster + Canon 85/1.8 (NEX-6, MTB)
  6. SpeedBooster + Canon 135/2L (NEX-6, MTB)

Zeiss Loxia 21mm f/2.8 Distagon

Outstanding ultra wide angle performer..

  1. Distortion for Zeiss Loxia 21/2.8 Distagon
  2. Vignetting for Zeiss Loxia 21/2.8 Distagon

Zeiss Loxia 25mm f/2.4 Distagon

Outstanding wide angle, superb performer..

  1. MTF for Zeiss Loxia 25mm f/2.4 Distagon from f/2.4 to f/16
  2. Vignetting for Zeiss Loxia 25mm f/2.4 Distagon
  3. Distortion for Zeiss Loxia 25mm f/2.4 Distagon
  4. Zeiss Loxa 25/2.4 vs Zeiss Batis 25/2: View from Dana Lakes to Mt Conness

Zeiss Loxia 35mm f/2 Biogon

Manual focus moderate wide angle for full-frame mirrorless..

  1. Overview of Zeiss Loxia 35mm f/2 Biogon
  2. Distortion for Zeiss Loxia 35/2 Biogon
  3. Vignetting for Zeiss Loxia 35/2 Biogon
  4. Aperture Series: Sparkling Sun on Lake (Evaluating Point Spread Function)

Zeiss Loxia 50mm f/2 Planar

Manual focus normal lens for full-frame mirrorless..

  1. Distortion for Zeiss Loxia 50/2 Planar
  2. Vignetting for Zeiss Loxia 50/2 Planar
  3. Dual Aperture Series: Saddlebag Lake Pines (Sony A7R)
  4. Aperture Series: White Glacial Erratic (Sony A7R)

Zeiss Loxia 85mm f/2.4 Sonnar

Manual focus telephoto lens for full-frame mirrorless..

  1. Vignetting for Zeiss Loxia 85mm f/2.4 Sonnar
  2. Distortion for Zeiss Loxia 85mm f/2.4 Sonnar

Zeiss Batis 18mm f/2.8 Distagon

Autofocus extreme wide angle for Sony full-frame mirrorless..

  1. MTF for Zeiss Batis 18/2.8 Distagon
  2. Vignetting for Zeiss Batis 18/2.8 Distagon
  3. Distortion for Zeiss Batis 18/2.8 Distagon

Zeiss Batis 25mm f/2 Distagon

Autofocus wide angle for Sony full-frame mirrorless..

  1. Overview of Zeiss Batis 25mm f/2 Distagon
  2. Vignetting for Zeiss Batis 25/2 Distagon
  3. Distortion for Zeiss Batis 25/2 Distagon
  4. Aperture Series: Water Through the Boulders (Sony A7R)

Zeiss Batis 40mm f/2

All-around slightly wide angle/normal with close focus..

  1. Longitudinal and Secondary Longitudinal Chromatic Aberration
  2. Aperture Series: White Aspen, Late Dusk

Zeiss Batis 85mm f/1.8 Sonnar

Autofocus portrait lens for Sony full-frame mirrorless..

  1. Overview of Zeiss Batis 85mm f/1.8 Sonnar
  2. Vignetting for Zeiss Batis 85/1.8 Sonnar
  3. Distortion for Zeiss Batis 85/1.8 Sonnar
  4. On a Tripod With SteadyShot / Image Stabilization = Damaged Sharpness (Sony A7R, Through the Boulders)
  5. Aperture Series: Yellow Flowers by Waterfall (Sony A7R II)

Zeiss Batis 135mm f/2.8 APO-Sonnar

Apochromatic pin-sharp medium telephoto for Sony full-frame mirrorless..

  1. Vignetting for Zeiss Batis 135/2.8 APO-Sonnar

Zeiss Touit 12mm f/2.8 Distagon

Ultra wide angle lens for Sony NEX or Fujifilm X..

  1. Distortion on Sony NEX, Fujifilm X
  2. Vignetting on Sony NEX, Fujifilm X
  3. Distortion Correction in JPEG vs RAW (Sony NEX-7)
  4. Examples: Portraiture (NYC Model, Sony NEX-7)

Zeiss Touit 32mm f/1.8 Planar

Normal lens for Sony NEX or Fujifilm X..

  1. Distortion on Sony NEX, Fujifilm X
  2. Vignetting on Sony NEX, Fujifilm X
  3. Distortion Correction in JPEG vs RAW (Sony NEX-7)

Zeiss Touit 50mm f/2.8M

Moderate telephoto macro lens for Sony NEX or Fujifilm X. Useful on full frame too!.

  1. Aperture Series: Leaf Closeup at ~1:5 (Sony A7R)
  2. Aperture Series: Fern, Wide-Open vs ƒ/5.6 (Sony A7R, APS-C)

Sigma Photo Pro Software 5.x

Sigma’s raw file processing software, version 5.x..

  1. Sigma Photo Pro 5: Correcting Lateral Chromatic Aberration

Sigma dp2 Quattro

45mm f/2.8 equivalent FOV lens..

  1. dp2 Quattro Optical Distortion
  2. dp2 Quattro Vignetting
  3. dp2 Quattro vs Canon 5D Mark III (Dolls)

Sigma DP2 Merrill

45mm f/2.8 equivalent lens on APS-C sensor..

  1. Examples (DP2M, San Francisco)
  2. Examples (DP2M, Outdoors)

Sigma DP3 Merrill

75mm f/2.8 equivalent lens on APS-C sensor..

  1. Aperture Series DP3 Merrill (DeChambeau Barn)

Leica M11

Leica M 60 Megapixels..

  1. Lens Detection: Uncoded Lenses Hang Camera

Leica M10-R

Leica M 40 Megapixels..

  1. Leica M10-R/M10m Causes Irreversible Damage to Raw Files with Uncoded or Coded Lenses

Leica M10 Monochrom

Leica M 40 megapixel monochrome sensor..

  1. Leica M10-R/M10m Causes Irreversible Damage to Raw Files with Uncoded Lenses

Leica M10

Leica M mount in slim body with SL-type sensor..

  1. Examples: Dana Lakes, Part 1: Tioga Lake to Dana Lakes

Leica M Typ 240 In Use

Overall design and behavior..

  1. Color Cast at Edges (M240, 24/3.8)

Leica M Typ 240 Compared To Full Frame Cameras

Relative sharpness and performance across cameras..

  1. M240 + 35/1.4 Summilux vs Sony RX1R (Green Machine)

Leica M Typ 240 With Alternate Lenses

With Live View and EVF, non-M-mount lenses become feasible..

  1. M240 + Coastal Optics 60mm f/4 UV-VIS-IR APO Macro (Doll)

Leica Q (Typ 116)

24-megapixel fixed lens compact full-frame..

  1. Perspective and Applicability of the Leica Q
  2. Leica Q: Extreme Barrel Distortion Degrades Sharpness, Reduces True Resolution, Decreases Field of View
  3. Conclusions

Leica Q2

47-megapixel fixed lens compact full-frame..

  1. Examples: Initial Evaluation Around the House

Ray angle and Color Shading With M Lenses

Off-center color casts, off-center sharpness..

  1. Color uniformity and Lens Correction
  2. Ray Angle From Lens Exit Pupil (Table of Ray Angles for Zeiss ZM Lenses)
  3. Color Shift When Stopping Down (Sony NEX-7)
  4. Lens Correction Examples (mostly for Zeiss)

Leica 16-18-21mm f/4 Tri-Elmar-M ASPH

Leica’s ultra wide angle zoom lens..

  1. MTF vs 21/3.4
  2. Distortion at 16mm, 18mm, 21mm
  3. Vignetting: 16-18-21/4 Tri-Elmar-M ASPH
  4. Field of View: 16mm, 18mm, 21mm
  5. Aperture Series, 18mm: California Poppies and Pots (Sony A7R)

Leica 18mm f/3.8 Super-Elmar-M ASPH

Leica’s widest prime lens..

  1. Distortion: 18/3.8 Super-Elmar-M ASPH
  2. Vignetting: 18/3.8 Super-Elmar-M ASPH
  3. Examples: 18/3.8 Super-Elmar-M ASPH
  4. Aperture Series: Lundy Pond, Pre-Dawn (M240)
  5. Aperture Series: Aspen Sunstar (M240)
  6. Aperture Series: Moots FrosTi (Sony A7)
  7. Sensor Cover Glass: Stock vs Kolarivision Modified Sony A7R (Mosaic)

Leica 21mm f/1.4 Summilux-M ASPH

Leica’s fastest and widest lens..

  1. Distortion: 21/1.4 Summilux-M ASPH
  2. Vignetting: 21/1.4 Summilux-M ASPH
  3. Comparison: Leica 21/1.4 vs Leica 21/3.4 (Interior)
  4. Comparison: Leica 21/1.4 vs Leica 21/3.4 (Water Tank)

Leica 21mm f/3.4 Super-Elmar-M ASPH

Leica’s best-performing 21mm..

  1. Distortion: 21mm f/3.4 Super-Elmar-M ASPH
  2. Vignetting: 21mm f/3.4 Super-Elmar-M ASPH
  3. Examples: Silver Canyon Contrasts (M9)

Leica 24mm f/1.4 Summilux-M ASPH

Leica’s fast wide angle..

  1. Notes: 24mm f/1.4 Summilux-M ASPH
  2. Distortion: 24mm f/1.4 Summilux-M ASPH
  3. Vignetting: 24mm f/1.4 Summilux-M ASPH

Leica 24mm f/3.8 Elmar-M ASPH

Leica’s best-performing 24mm, and with a flat field..

  1. Notes: 24mm f/3.8 Elmar-M ASPH
  2. Distortion: 24mm f/3.8 Elmar-M ASPH
  3. Vignetting: 24mm f/3.8 Elmar-M ASPH

Leica 28mm f/1.4 Summilux-M ASPH

Leica’s fast 28mm..

  1. Introduction to Leica 28mm f/1.4 Summilux-M ASPH
  2. Distortion for Leica 28mm f/1.4 Summilux-M ASPH
  3. Vignetting for Leica 28mm f/1.4 Summilux-M ASPH
  4. Secondary Longitudinal Chromatic Aberration (M240)

Leica 28mm f/2 Summicron-M ASPH (pre-2016)

Leica’s widest lens utilizing built-in frame lines..

  1. Distortion: 28mm f/2 Summicron-M ASPH
  2. Vignetting: 28mm f/2 Summicron-M ASPH
  3. Examples: Leica 28mm f/2 Summicron-M ASPH

Leica 28mm f/2 Summicron-M ASPH (2016)

Tweaked 2016 redesign..

  1. Distortion
  2. Vignetting

Leica 28mm f/2.8 Elmarit-M ASPH (2016)

Tweaked 2016 redesign of Leica’s petite performer..

  1. Overview of 28mm f/2.8 Elmarit-M ASPH (2016)
  2. Distortion
  3. Vignetting

Leica 28mm f/2.8 Elmarit-M ASPH (pre-2016)

Leica’s smallest and lightest M lens with superlative performance..

  1. Notes: 28mm f/2.8 Elmarit-M ASPH
  2. Distortion: 28mm f/2.8 Elmarit-M ASPH
  3. Vignetting: 28mm f/2.8 Elmarit-M ASPH
  4. Aperture Series: Tile Rooftops Aerial (M9)

Leica 35mm f/1.4 Summilux-M ASPH (2010 FLE)

Leica’s superlative and most natural lens for the M..

  1. Notes: Leica 2010 35mm f/1.4 Summilux-M ASPH
  2. Distortion: 35mm f/1.4 Summilux-M ASPH
  3. Vignetting: 35mm f/1.4 Summilux-M ASPH
  4. Aperture Series: 35/1.4 — Glacial Erratics (M240)
  5. Assessing Field Curvature— Green Paint (M240)
  6. Compared: 35mm f/1.4 Summilux vs 35/2 Summicron vs Zeiss 35/2 Biogon (M9P, Cabin Sink)
  7. Compared: 35mm f/1.4 Summilux vs 35/2 Summicron vs Zeiss 35/2 Biogon (M9P, Cabin Exterior)
  8. Compared: vs Zeiss ZM 35/2 and Sony 35/2.8 (Sony A7R, Red Barn)

Leica 35mm f/2 APO-Summicron-M ASPH

High performance moderate wide angle..

  1. Distortion for Leica 35mm f/2 APO-Summicron-M ASPH
  2. Vignetting for Leica 35mm f/2 APO-Summicron-M ASPH

Leica 35mm f/2 Summicron-M ASPH

Leica’s f/2 35mm for the M..

  1. Distortion: 35mm f/2 Summicron-M ASPH
  2. Vignetting: 35mm f/2 Summicron-M ASPH

Leica 35mm f/2.5 Summarit-M

Leica’s Budget 35mm lens..

  1. Distortion: 35mm f/2.5 Summarit-M
  2. Vignetting: 35mm f/2.5 Summarit-M

Leica M 50mm Lenses

Six models to choose from..

  1. Compared: Noctilux, Summilux, APO-Summicron (M240, Green Paint Bldg)
  2. 50/2 APO vs Noctilux (M240, Dana Meadow / Kuna Peaks)
  3. 50/2 APO vs Noctilux (M240, Orange-Bark Pine Tree)

Leica 50mm f/0.95 Noctilux-M ASPH

World’s fastest 50mm full-frame lens..

  1. Distortion: 50/0.95 Noctilux-M ASPH
  2. Vignetting: 50/0.95 Noctilux-M ASPH
  3. Leica 50/2 Summicron vs Leica 50/0.95 Noctilux
  4. Examples: 50/0.95 Noctilux (Wide Aperture Landscapes)

Leica 50mm f/1.4 Summilux-M ASPH

Leica’s superlative normal lens..

  1. Distortion: 50/1.4 Summilux-M ASPH
  2. Vignetting: 50/1.4 Summilux-M ASPH

Leica 50mm f/1.2 Noctilux-M ASPH

Modern iteration of a classic design..

  1. MTF for Leica 50mm f/1.2 Noctilux-M ASPH
  2. Distortion for Leica 50mm f/1.2 Noctilux-M ASPH
  3. Vignetting for Leica 50mm f/1.2 Noctilux-M ASPH

Leica 50mm f/2 APO-Summicron-M ASPH

High performance but flawed 50mm normal lens..

  1. Distortion: 50mm f/2 APO-Summicron-M ASPH
  2. Vignetting: 50mm f/2 APO-Summicron-M ASPH
  3. Focus Shift with the 50/2 APO ASPH (Dolls)
  4. Color Bokeh (Secondary Longitudinal Chromatic Aberration, Dolls)
  5. Aperture Series: Bikes at Night (Sony A7R)
  6. Aperture Series: Bleached Bristlecone Logs at Blue Dusk (M240)

Leica 50mm f/2 Summicron-M

Leica’s compact low-distortion normal lens..

  1. Distortion: 50/2 Summicron-M
  2. Vignetting: 50/2 Summicron-M
  3. Examples: 50/2 Summicron-M

Leica 50mm f/2.5 Summarit-M

Leica’s Budget 50mm lens..

  1. Distortion: 50mm f/2.5 Summarit-M
  2. Vignetting: 50mm f/2.5 Summarit-M

Leica 75mm f/1.25 Noctilux-M ASPH

Leica’s ultra high grade and ultra fast modern short telephoto..

  1. Distortion
  2. Vignetting

Leica 75mm f/2 APO-Summicron-M ASPH

Leica’s medium tele for Leica M..

  1. 75mm f/2 APO-Summicron-M ASPH
  2. Distortion: 75/2 APO-Summicron-M ASPH
  3. Vignetting: 75/2 APO-Summicron-M ASPH

Leica 75mm f/2.4 (2.5) Summarit-M

Leica’s budget 75mm medium telephoto..

  1. Distortion: 75mm f/2.4 (2.5) Summarit-M
  2. Vignetting: 75mm f/2.4 (2.5) Summarit-M

Leica 90mm f/2 APO-Summicron-M ASPH

Leica’s longer tele for Leica M..

  1. Distortion: 90/2 APO-Summicron-M ASPH
  2. Vignetting: 90/2 APO-Summicron-M ASPH

Leica 90mm f/2.2 Thambar-M

Leica’s retro telephoto..

  1. Vignetting
  2. Distortion

Leica 90mm f/2.4 (2.5) Summarit-M

Leica’s compact 90mm for the M..

  1. MTF: 90mm f/2.4 (2.5) Summarit-M
  2. Distortion: 90mm f/2.4 (2.5) Summarit-M
  3. Vignetting: 90mm f/2.4 (2.5) Summarit-M
  4. Examples 90/2.5 Summarit-M: Backyard
  5. 90/2.4 Summarit vs 90/2 APO-Summicron: Green Lichen Barn Exterior (M240)

Leica 90mm f/4 Macro-Elmar-M

Diminutive telephoto and macro lens..

  1. Distortion
  2. Vignetting

Leica 135mm f/3.4 APO-Telyt-M

Leica’s longest M lens..

  1. Distortion: 135mm f/3.4 APO-Telyt-M
  2. Vignetting: 135mm f/3.4 APO-Telyt-M

Leica 90mm f/2 APO-Summicron-R ASPH

Compact lens for portraiture or similar..

  1. Vignetting: 90/2 APO-Summicron-R ASPH
  2. Distortion: 90/2 APO-Summicron-R ASPH

Leica 100mm f/2.8 APO-Macro-Elmarit-R

Superb all-around macro and general-purpose lens..

  1. Vignetting: 100/2.8 APO-Macro-Elmarit-R
  2. Distortion: 100/2.8 APO-Macro-Elmarit-R

Leica 180mm f/2.8 APO-Elmarit-R

World’s best mid-range telephoto lens..

  1. Vignetting: 180mm f/2.8 APO-Elmarit-R
  2. Distortion: 180mm f/2.8 APO-Elmarit-R

Leica 280mm f/4 APO-Telyt-R

Compact and ultra high performance long telephoto..

  1. Vignetting: 280/4 APO-Telyt-R
  2. Distortion: 280/4 APO-Telyt-R

Zeiss ZM 15mm f/2.8 Distagon

Notes and examples..

  1. Vignetting: 15mm f/2.8 Distagon
  2. Distortion: 15mm f/2.8 Distagon

Zeiss ZM 18mm f/4 Distagon

Compact high performance, ultra low distortion..

  1. Distortion: Zeiss ZM 18/4 Distagon
  2. Vignetting: Zeiss ZM 18/4 Distagon

Zeiss ZM 21mm f/2.8 Biogon

Moderate speed high contrast ultra-wide..

  1. Distortion: Zeiss ZM 21/2.8 Biogon
  2. Vignetting: Zeiss ZM 21/2.8 Biogon
  3. Examples: Zeiss ZM 21/2.8 Biogon (Miscellaneous)

Zeiss ZM 21mm f/4.5 C-Biogon

Zero distortion ultra-wide..

  1. Distortion: Zeiss ZM 21mm f/4.5 C-Biogon
  2. Vignetting: Zeiss ZM 21mm f/4.5 C-Biogon

Zeiss ZM 25mm f/2.8 Biogon

Compact wide angle with brilliant contrast..

  1. Zeiss ZM 25mm f/2.8 Biogon
  2. Distortion: Zeiss ZM 25mm f/2.8 Biogon
  3. Vignetting: Zeiss ZM 25mm f/2.8 Biogon

Zeiss ZM 28mm f/2.8 C-Biogon

Compact wide angle..

  1. Distortion: Zeiss ZM 28mm f/2.8 C-Biogon
  2. Vignetting: Zeiss ZM 28mm f/2.8 C-Biogon

Zeiss ZM 35mm f/1.4 Distagon

Fast and ultra high performance moderate wide angle rangefinder lens..

  1. Zeiss ZM 35mm f/1.4 Zeiss Distagon
  2. MTF on Mirrorless Cameras, Sensor Cover Glass
  3. Vignetting for Zeiss ZM 35/1.4 Distagon
  4. Vignetting vs Effective Aperture at Periphery
  5. Distortion for Zeiss ZM 35/1.4 Distagon
  6. Aperture Series: Maple Leaf Underwater, Floating Leaves (M240)
  7. Aperture Series: Fading Maple Leaves In Backlit Creek (M240)

Zeiss ZM 35mm f/2 Biogon

All around razor sharp performer..

  1. Notes: 35mm f/2 Zeiss ZM Biogon
  2. Distortion: ZM 35mm f/2 Biogon
  3. Vignetting: ZM 35mm f/2 Biogon

Zeiss ZM 35mm f/2.8 C-Biogon

Ultra compact high performance moderate wide angle rangefinder lens..

  1. Distortion for ZM 35mm f/2.8 C-Biogon

Zeiss ZM 50mm f/2 Planar

Pleasing and relatively inexpensive normal lens.

  1. Distortion: ZM 50mm f/2 Planar
  2. Vignetting: ZM 50mm f/2 Planar

Zeiss ZM 85mm f/2 Sonnar

Ultra high performance (discontinued).

  1. Distortion for ZM 85/2 Sonnar
  2. Vignetting for ZM 85/2 Sonnar

Zeiss ZM 85mm f/4 Tele-Tessar

Compact high performance medium telephoto..

  1. Distortion for ZM 85/4 Tele-Tessar
  2. Vignetting for ZM 85/4 Tele-Tessar

Voigtlander Ultron 21mm f/1.8

Fast high performance wide angle..

  1. Compared: vs Leica 21/3.4 SEM and Voigtlander 21/4 (M240, Wyman Cabin Interior)

Blog posts, reverse chronological

2023

2023-03-20 Adobe Camera Raw Still Lacks Distortion Correction for Sony FE 20-70mm f/4 G

2023-03-07 Sony FE 20-70mm f/4G: Fun-House-Mirror Distortion, as Expected

2023-03-07 Sony FE 20-70mm f/4G: Assessing Distortion at 20mm, 24mm, 35mm, 50mm, 65mm

2023-01-17 Sony FE 20-70mm f/4G: Appealing Zoom Range, How Good Will It Be?

2022

2022-12-02 Fujifilm GF 20-35mm f/4 Distortion Evaluation from 20mm to 35mm

2022-11-05 Hasselblad USA Service Center Closed/Relocated? Expertise to Repair? ***UPDATED WITH OFFICIAL RESPONSE ***

2022-09-10 Fujifilm GFX100S vs Hasselblad X2D 100C: Which is Better?

2022-03-04 Venus Optics Laowa GFX 17mm f/4 Zero-D for Fujifilm Medium Format

2022-03-04 Distortion and Distortion Correction for Fujifilm GF 80mm f/1.7, Fujifilm GF 45mm f/2.8, Fujifilm GF 32-64mm f/4

2022-03-02 Fujifilm GF 32-64mm f/4 Distortion and Distortion Correction

2022-02-25 Fujifilm GF 35-70mm f/4.5-5.6 Distortion and Distortion Correction

2022-02-22 Fujifilm GF 50mm f/3.5: Distortion Correction Degrades Crispness Noticeably

2022-02-22 Adobe Camera Raw Mandatory Lens Corrections: How to Bypass by Changing Camera Name

2022-02-17 Fujifilm GFX100S: Which Mid-Range Lenses?

2022-01-20 Leica M11 Electronic Shutter: what is the Sensor Readout Transit Time?

2022-01-17 Adobe Camera Raw, PhaseOne C1Pro: Broken Distortion Correction of Leica M11 DNG

2022-01-12 Sony FE 50mm f/1.2 GM Aperture Series: Last Season’s Plant Spikes in Spring Meadow

2021

2021-12-12 Interest in Nikon Z9 and the Newer Nikon NIKKOR Z Lenses? (UPDATED with reader comments)

2021-10-31 Canon RF 15-35mm f/2.8L, Canon RF 14-35mm f/4L , Canon RF 24-70mm f/2.8L Distortion Correction

2021-10-17 NEW: Voigtlander M 90mm f/2.8 APO-Skopar for Leica M, and Voigtlander 90mm f/2.8 APO-Skopar SL IIs for Nikon F-Mount

2021-09-09 Sigma Releases Two More DG DN Contemporary Lenses for Sony mirrorless, Leica L-Mount

2021-09-08 Really Right Stuff L-Bracket for Leica SL2

2021-09-08 FOR SALE: Leica M Lenses, Zeiss Batis 18/2.8, Canon 5DsR, Canon MP-E 65mm f/2.8

2021-09-04 Reader Comment: Fujifilm GFX50S II for Monochrome Conversion and Infrared as Companion Camera to Fujifilm GFX100S?

2021-09-04 Leica 35mm f/2 APO-Summicron-SL ASPH, Initial Impression

2021-09-03 Leica 28mm f/2 APO-Summicron-SL ASPH: Distortion and Distortion Correction

2021-07-09 Sony FE 14mm f/1.8 GM, Sony FE 35mm f/1.4 GM: Distortion and Distortion Correction

2021-07-09 Sony FE 14mm f/1.8 GM vs Sony FE 12-24mm f/2.8 GM: Distortion and Distortion Correction

2021-05-13 Cataracts in Your Eyes? CAUTION on Which Intraocular Replacement Lenses Chosen

2021-05-04 With Newer-Model Cameras, Adobe Camera Raw Allows Distortion Correction, Color Fringing, Vignetting Corrections to be Controlled

2021-05-02 Voigtlander FE 35mm f/2 APO-Lanthar Aspherical: Distortion

2021-05-02 Fujifilm GFX100S + Fujifilm GF 30mm f/3.5: Optical Distortion

2021-04-25 Sigma FE 35mm f/2 DG DN Contemporary: Impact of Distortion Correction

2021-04-24 Sigma FE 35mm f/2 DG DN Contemporary: Distortion

2021-04-24 Reader Question on Sigma FE 85mm f/1.4 DG DN: Sharpness and Distortion, Which 85mm Lens?

2021-04-02 Reader Comment: Zeiss Milvus 25mm f/1.4 or 18/2.8 or 21/2.8 for Astrophotography?

2021-04-01 Sony FE 24mm f/2.8G Aperture Series: Fenceline

2021-03-29 Sony FE 24mm f/2.8G: for Best Results, Understand the Optical Behaviors (Aperture Series: Deck Planks)

2021-03-26 Voigtlander FE 50mm f/2 APO-Lanthar Aspherical: Distortion Correction

2021-03-24 Sony FE 24mm f/2.8 G: Distortion and Distortion Correction

2021-03-15 Reader Comment: Fujifilm GFX100S/GFX100 Focus Stepping / Focus Stacking FOCUS BKT Algorithmic Error? Far Too Many Tightly-Focused Frames

2021-03-10 Adobe Camera Raw “Super Resolution” Mode Added to Enhance Details — Unacceptable Digital Artifacts

2021-03-03 The Most Useful and Practical Telephoto for Wildlife Might Be the Olympus M.Zuiko Digital ED 150-400mm f/4.5 TC1.25X IS PRO

2021-02-26 Voigtlander FE 35mm f/2 APO-Lanthar vs Sony FE 35mm f/1.4 GM

2021-01-30 Reader Question: Best Lenses for the Fujifilm GFX100S + Equivalent Focal Length and F-Stop vs 35mm Format

2020

2020-11-04 Sigma FE 85mm f/1.4 DG DN Art Aperture Series: Last Yellow Aspen at Edge Of Beaver Pond

2020-10-20 Sony’s Shading Compensation (Vignetting Correction) Whacks Raw Files Hard—Turn it Off When Shooting RAW

2020-09-30 Sony FE 12-24mm f/2.8 GM Distortion Examples, Uncorrected vs Distortion Correction

2020-09-22 Looks Like the Eastern Sierra Fall Color Season is Toast

2020-09-11 Sigma FE 85mm f/1.4 DG DN Art: Micro Contrast, Moiré, Color Aliasing with/without Pixel Shift and Distortion Correction

2020-09-11 Sigma FE 85mm f/1.4 DG DN Art: Hideous Pincushion Distortion and Its Effects on Micro Contrast

2020-09-02 Reader Comment: Voigtlander FE 50mm f/2 APO-Lanthar Aspherical Vignetting and Color Symmetry

2020-08-29 Nikon NIKKOR Z 20mm f/1.8 S: Assessing Sharpness Losses from Mandated Distortion Correction

2020-07-21 Pancake Zoom: the Nikon Nikkor Z 24-50mm f/4-6.3

2020-07-07 Sony FE 12-24mm f/2.8 GM: will it be the ultra wide zoom I’ve been hankering for?

2020-06-14 Distortion and Distortion Correction for Hasselblad XCD 65mm f/2.8, Hasselblad XCD 80mm f/1.9, Hasselblad XCD 135mm f/2.8, Hasselblad XCD 35-75mm f/3.5-4.5

2020-04-18 Relocating to a New Spot

2020-03-21 Voigtlander 50mm f/2 APO-Lanthar Aperture Series: Painting of Idyllic Ocean on Burned-Out Van Door (Sony A7R IV)

2019

2019-10-28 Found a new Top-Flight Shooting Location in Yosemite

2019-09-20 Sony 16-35mm f/2.8 GM Aperture Series @ 35mm: Mosaic (Sony A7R IV)

2019-09-16 Sigma 35mm f/1.2 DG DN Art Aperture Series: Effects of Distortion Correction

2019-09-01 Reader Question: Considering Focus Breathing Performance for Focus Stacking When Choosing a Lens

2019-07-26 Fujifilm GFX100 BUG: Sets Mandatory Lens Correction Profile for Unknown Lenses

2019-06-20 Nikon NIKKOR Z 14-30mm f/4 S Distortion at 14mm, 19.5mm, 30mm

2019-05-21 Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 28mm, 35mm, 50mm: Mosaic (Nikon Z7)

2019-05-20 Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 70mm: Mosaic (Nikon Z7)

2019-05-20 Nikon NIKKOR Z 24-70mm f/2.8 S Aperture Series @ 24mm: Mosaic (Nikon Z7)

2019-05-12 Sharpness and Micro Contrast Losses from Mandatory Distortion Correction with the Nikon NIKKOR Z 24-70mm f/2.8 S

2019-04-21 Panasonic LUMIX S PRO 50mm f/1.4: How Distortion Correction Affects Sharpness in both Single Shot and Multi Shot High Res Mode

2019-04-20 Leica 16-35mm f/3.5-4.5 Super-Vario-Elmar-SL ASPH: Assessing Distortion at 16mm, 25mm, 28mm, 35mm, plus MTF

2019-04-19 Leica 50mm f/1.4 Summilux-SL ASPH: Sharpness Losses from Distortion Correction

2019-04-06 Zeiss Batis 85mm f/1.8: the Negative Sharpness and Micro Contrast Effects of Correcting nearly 3% Pincushion Distortion

2019-04-06 Panasonic LUMIX S 24-105mm f/4 Macro OIS: Evaluating Distortion and the Effects of Distortion Correction

2019-03-07 Leica Q2 Announced, a Few Comments

2018

2018-11-17 Multifocal or Presbyopia-Correcting Human Eye Lens Implants (IOL)

2018-10-31 Coastal Optics 60mm f/4 UV-VIS-IR APO-Macro Aperture Series (Many), on Nikon Z7

2018-10-30 Nikon Z7 Captures Incredible 45-Megapixels of Chromatically Perfect Detail with Coastal Optics 60mm f/4 UV-VIS-IR APO-Macro

2018-10-17 Canon RF 24-105mm f/4L IS Color Fringing (Lateral Chromatic Aberration) with/without Correction

2018-09-30 Sony 85mm f/1.4 GM Aperture Series for Bokeh / Visual Impact: Aspen Trunks at Rock Creek

2018-09-27 Zeiss Batis 40mm f/2: Data Sheets Continue to Omit Optical Distortion, Showing Only Corrected Distortion

2018-09-25 Sigma’s Fast New Art Lenses, Plus What Looks to be a 'Killer' 70-200mm f/2.8 Zoom

2018-09-07 Expectations for Performance of the Canon RF 50mm f/1.2L: One of Many New Lenses in a Golden Age of Optics

2018-09-07 Expectations for Performance of the Canon RF 28-70mm f/2L: Canon’s “Halo Lens” in a Golden Age of Optics

2018-08-30 Nikon Z7: Optical Design vs the Large-Diameter Z-Mount and Short 16mm Flange Focal Distance

2018-08-25 Nikon Z7: High-Grade EVF

2018-08-24 Comments on Nikon Z7 Features

2018-07-31 Zeiss Milvus 100mm f/2M Color Correction Shootout vs Nikon 105mm f/2 DC and Sigma 105mm f/1.4 DG HSM Art: Glacial erratic and eroded pine stump

2018-07-11 Reader Question: Color Rendition of Lenses

2018-07-06 Reader Question on Vignetting for Zeiss Loxia 50mm f/2 Planar

2018-05-21 Venus Optics Laowa 105mm f/2 STF Aperture Series: Storm Clouds Over Kolob Canyons Peaks (Sony A7R III)

2018-03-13 Venus Optics Laowa 12mm f/2.8 Zero-D: Three Aperture Series + Distortion Explained

2018-02-22 Venus Optics Laowa 12mm f/2.8 Zero-D Aperture Series: Milling Lathe

2018-01-28 Sony A7R III Pixel Shift: How Distortion Correction Affects Micro Contrast and Sharpness with Sony 24-105/4G OSS @ 24mm

2018-01-28 Sony A7R III Pixel Shift: How Distortion Correction Affects Micro Contrast and Sharpness with Sony 24-105/4G OSS @ 105mm

2018-01-20 Working on Sony FE 24-105mm f/4 G OSS

2017

2017-10-18 Zeiss Milvus 25mm f/1.4: MTF, Distortion, Vignetting

2017-10-06 Sigma 14mm f/1.8 DG HSM Art Aperture Series: Precocious Cluster of Yellow Aspen Leaves

2017-07-24 The Logjam Breaks: Nikon Discusses the D850

2017-07-24 Sony 12-24mm f/4G Aperture Series @ 12mm: Pescadero Creek, Upstream (Sony A7R II)

2017-07-23 Sony 12-24mm f/4G Distortion: Uncorrected vs Corrected

2017-07-11 Sony FE 12-24mm f/4 G: Aperture Series at 17mm and 24mm (Mosaic)

2017-07-10 Sony FE 12-24mm f/4 G: Aperture Series at 12mm (Mosaic)

2017-05-14 Photoshop ACR Behavior: Uses Wrong Lens Profile

2017-04-11 Fujifilm GF 63mm f/2.8 Distortion Example

2017-01-12 Hasselblad X1D-50C vs Fujifilm GFX-50S Lens Lineup (UPDATED 13 Jan)

2016

2016-12-29 Color Fringing in Blue Light: Gains From Correction with Canon 11-24mm f/4L (5DS R)

2016-12-18 Zeiss Milvus 18mm f/2.8 Aperture Series: Frosty Wood Round

2016-06-20 Leica SL vs M240: Lens Corrections and Color Rendering with M Lenses

2016-06-17 Leica SL a Replacement for M240 when Shooting M lenses?

2016-04-26 Sony G Master 24-70mm f/2.8 GM Distortion Examples, Uncorrected vs Corrected

2016-04-20 Optical Distortion: Zeiss Batis 18mm f/2.8 and Voigtlander 15mm f/4.5 for Sony Mirrorless

2016-04-14 Zeiss Batis 18mm f/2.8 Distagon: MTF Can Be Better than the MTF Charts Show

2016-04-14 Zeiss Batis 18mm f/2.8 Distagon: Data Sheet Confusing Because Distortion Graph is Software-Corrected (only)

2016-04-14 REVIEWED in Depth: the NEW Zeiss Batis 18mm f/2.8 Distagon

2016-02-29 Sigma SD Quattro Mirrorless Cameras

2016-01-29 Examples: Venus Optics Laowa 15mm f/4 Macro on Sony A7R II

2016-01-23 Reflecting on the Ricoh GR

2016-01-17 Fujifilm X-Pro2

2016-01-01 Sony RX1R II Distortion

2015

2015-12-20 Sigma 20mm f/1.4 DG HSM Art Aperture Series: Distortion examples, Uncorrected and Corrected

2015-09-17 King of Bokeh, well-controlled SLOCA?

2015-09-16 Leica 28mm f/1.4 Summilux-M ASPH: Analysis/Example of SLOCA (Secondary Longitudinal Chromatic Aberration)

2015-09-13 On Secondary Color: Collective Context-Dropping regarding Zeiss Milvus 50/1.4 Distagon

2015-09-03 Kolarivision Sony A7R II with Leica M Lenses: Coming Soon

2015-08-30 Sony A7R II: Night Shooting (Coastal Optics 60mm f/4 UV-VIS-IR APO Macro)

2015-08-29 Coastal Optics 60mm f/4 UV-VIS-IR APO Macro Aperture Series (Sony A7R II)

2015-08-04 Readers Write on the Sony A7R II: is there a quality issue with the EVF?

2015-07-19 Leica Q: Really not a 24MP Camera and not a 28mm Lens (in effect)

2015-07-06 Canon 5DS R: Corrections for Color Fringing More Important than at Lower Resolution

2015-07-03 Leica Q: Initial Review Coverage

2015-06-13 Sony FE 28mm f/2 Aperture Series: Gnarled Stump in Snowstorm, Hoover Wilderness (Sony A7R)

2015-05-27 Sony: Which Lens Corrections are Baked Into the Raw ARW File?

2015-05-26 Sony FE 28mm f/2: Strong Distortion and How Correcting it Damages Sharpness

2015-05-26 Sony FE 28mm f/2 Aperture Series: Knobby Boulder in Creek (Sony A7R)

2015-05-22 Leica 28mm f/1.4 Summilux-M ASPH Initial Coverage and Comments

2015-04-29 Zeiss Batis 85mm f/1.8 Sonnar: MTF Series from f/1.8 - f/16 + Distortion

2015-04-29 Zeiss Batis 25mm f/2 Distagon: MTF Series from f/2 - f/16 + Distortion

2015-04-22 Zeiss Announces 'Batis' line: Zeiss Batis 25mm f/2 Distagon and Zeiss Batis 85mm f/1.8 Sonnar

2015-04-09 Table of f-stops: Full Stops, 1/2 Stops, 1/3 Stops (Depth of Field)

2015-03-27 Sigma 24mm f/1.4 DG HSM Art: Vignetting and Distortion

2015-03-16 Manzanar (WW II Relocation Camp for Japanese Americans)

2015-01-16 Sony A7R: Sensor Glass Thickness, Ray Angle and Image Degradation: Kolarivision Modification

2014

2014-11-29 Sony FE 16-35mm f/4: Distortion at 16mm, 20/21mm, 24mm, 28mm, 35mm

2014-10-15 Nikon 20mm f/1.8G ED: Distortion

2014-09-08 Image Circle Size for 55/1.4 APO-Distagon and 135mm f/2 APO-Sonnar

2014-08-13 Reader Question: Image Brightness at Full Aperture vs Stopped Down

2014-07-11 B&H Photo Now Offers Free Expedited Shipping (1/2/3 days depending on location)

2014-06-10 Zeiss ZF.2 / ZE Distortion: 15/2.8, 18/3.5, 21/2.8 Distagons

2014-06-07 Sigma 50mm f/1.4 DG HSM: Discussing Optical and Autofocus Expectations, LOCA

2014-05-30 Nikon 58mm f/1.4G: Distortion Uncorrected and Corrected

2014-05-25 Format Equivalent Depth of Field: APS-C vs Full Frame

2014-05-19 Format Equivalent Depth of Field: a Non-Alcoholic Demonstration (Micro Four Thirds vs Full Frame)

2014-05-13 My Most Important Publication: Making Sharp Images

2014-04-09 Color Shading (Vignetting by Color) on Digital Sensors

2014-04-08 Color Correction (LOCA, Secondary LOCA, LACA)

2014-04-06 Coastal Optics 60mm f/4 UV-VIS-IR APO Macro Aperture Series (Teak Bench, Sony A7R)

2014-04-06 Coastal Optics 60mm f/4 UV-VIS-IR APO Macro Aperture Series (Poppies and Pots, Sony A7R)

2014-04-06 Coastal Optics 60mm f/4 UV-VIS-IR APO Macro Aperture Series (Metal Watering Can, Sony A7R)

2014-03-31 Secondary Color Correction with Leica 90/2 APO, Zeiss ZM 85mm f/4 Tele-Tessar, ZM 85/2 Sonnar: Barn Interior (Leica M240)

2014-03-26 Leica 16-18-21mm f/4 Tri-Elmar-M ASPH: Field of View, Distortion, MTF

2014-03-18 Astigmatism and Lateral Color: Why Performance is Lens + Sensor (aka why do my expensive lenses suck on mirrorless)

2014-02-23 Does the Sony A7R have Circular Ring Artifacts?

2014-02-16 Sony FE 24-70mm f/4 OSS Vario-Tessar: Aperture Series at 43mm, 70mm + Distortion and Color Fringing at 43mm, 70mm

2014-02-10 Sony FE 24-70mm f/4 OSS Vario-Tessar: Distortion and Color Fringing at 24mm

2013

2013-12-06 Sony A7R: Shading, Color Shading and Lens Compensation

2013-12-06 Sony A7R: Aperture Series (Grass Bench) and Apparent Bug in Lens Comp

2013-11-09 Hartblei 80mm f/2.8 Tilt Shift (Zeiss medium format optics)

2013-09-06 Samyang 14mm f/2.8: Lens Skew Asymmetry

2013-09-03 Sony RX1R: Correcting Lens Distortion

2013-07-24 Micro Four Thirds vs APS-C: Lens Size

2013-06-03 Zeiss 15mm f/2.8 Distagon vs Nikon 14-24/2.8 Under Difficult Lighting (Flare)

2013-05-18 Zeiss Touit 32mm f/1.8 Planar: MTF and Distortion and Vignetting Charts (for Sony NEX + Fuji X)

2013-05-17 Zeiss Touit 12mm f/2.8 Distagon: MTF and Distortion and Vignetting Charts (for Sony NEX + Fuji X)

2013-05-11 Zeiss Touit 32mm f/1.8 Planar: Correcting Distortion in Adobe Camera Raw

2013-05-10 Zeiss Touit 32mm f/1.8 Planar: Distortion Correction in JPEG, vs RAW

2013-05-10 Zeiss Touit 12mm f/2.8 Distagon: Distortion Correction in JPEG, vs RAW

2013-05-04 Lens Corrections for Native Lenses on Sony NEX and Fuji X

2013-04-22 Leica M Typ 240: Done For Now

2013-04-17 Leica M Typ 240 / M240 with Coastal Optics 60mm f/4 UV-VIS-IR APO Macro

2013-04-15 Coastal Optics 60mm f/4 UV-VIS-IR APO-Macro on Leica M Typ 240 / M240 [using Novoflex Nikon to M Adapter]

2013-02-08 Zeiss 35/1.4 Distagon versus Sigma 35/1.4 DG HSM A1 and Nikon AF-S 35/1.4G(Nikon D800E)

2013-01-14 Metabones and Caldwell Photographic introduce Speed Booster

2012

2012-12-15 Sony RX1: Aperture Series, Distortion Correction

2012-12-11 Nikon 70-200mm f/4G ED VR Distortion

2012-10-30 DxO Optics Pro 8 Lens Recognition Bug

2012-10-26 DxO Optics Pro Support for Retina Display

2012-10-22 DxO Optics Pro Coverage

2012-10-20 Thoughts on Olympus SHG Four Third Lenses, Including Video Usage

2012-10-14 Sigma DP1 Merrill — Correcting Lateral Chromatic Aberration

2012-09-27 Zeiss 135mm f/2 APO Sonnar for Nikon and Canon — Superlative Performer

2012-09-13 Zeiss 135mm f/2 APO Sonnar MTF from f/2 - f/16

2012-09-11 Workflow, RAW Conversion: Adobe Camera RAW (ACR) vs DXO Optics Pro

2012-09-11 New Article in Workflow: Local Contrast enhancement

2012-09-09 Sony RX100: DXO Optics Pro vs ACR

2012-09-09 Sony RX100: Adobe Camera RAW 7.2 RC Distortion Correction = FORCED ON

2012-09-07 Zeiss ZF.2 / ZE 135mm f/2 APO Sonnar for Canon or Nikon

2012-07-16 Understanding Longitudinal Chromatic Aberration with the Zeiss 100mm f/2 Makro-Planar

2012-05-21 Filtration for Leica M Monochrom to Improve Image Sharpness and Tonal Separation

2012-04-07 Reader Asks: Coastal Optics 60mm f/4 UV-VIS-IR APO-macro vs Zeiss 50mm f/2 Makro-Planar

2012-03-16 Reader Comments: Zeiss 15/2.8 Distagon

2012-02-09 Reader Comments: “how a lens draws” — Leica vs Zeiss/Nikon/Canon/Pentax

2012-01-23 Why no Custom Lens Correction on Leica M9?

2012-01-23 Sony NEX-7 Color Shading & Vignetting vs Sony 24mm f/1.8 Sonnar

2012-01-23 Q&A Interview with Leica USA

2012-01-23 Color Shading & Vignetting for Leica 28mm f/2.8 Elmarit-M ASPH and 50mm f/0.95 Noctilux-M ASPH

2012-01-09 Leica M9: Color Shading for 12 Lenses With/Without Lens Correction

2011

2011-12-13 Adobe Camera Raw (ACR) Always Corrects Distortion With Some Cameras

2011-12-01 Reader Asks: Is There Zeiss 35mm f/1.4 Lateral Chromatic Aberration?

2011-12-01 Reader Asks: Color Asymmetry with Leica 35mm f/2 Summicron-M ASPH

2011-11-18 Lateral Chromatic Aberration: Nikon 24mm f/1.4G

2011-11-11 Adobe ACR Lens Profile for Zeiss 35mm f/1. 4 Distagon?

2011-06-04 Fuji Finepix X100 — Lens Distortion

2011-04-04 Lateral Chromatic Aberration (Color Fringing) With Zeiss 35/1.4 Distagon vs Zeiss 35/2 Distagon

2011-01-14 Zeiss 35mm f/1.4 Distagon MTF, distortion, vignetting

2010

2010-11-13 Nikon 24-120mm f/4G VR comments

2010-07-26 Update: axial chromatic aberration and filtration

2010-07-25 Leica S2: axial chromatic aberration with Leica 70mm f/2.5 Summarit-S ASPH

2010-07-24 Aperture shape — is it circular? Does it matter for bokeh?

2010-07-08 Hasselblad user examines Leica S2 pre-review coverage

2010-06-03 Depth of field with a fast lens in daylight

2010-05-20 Global cooling? Local at least.

2009

2009-10-12 Carl Zeiss on lens distortion

2009-09-11 Canon TS-E 24/3.5L II distortion

2009-02-15 Canon 5D Mark II Live View vignetting

2009-01-17 Canon 5D Mark II and optics

2008

2008-11-11 Tip of the day: Depth of field

2008-08-19 Multi-core CPU usage of DXO Optics PRo

2008-08-14 Vignetting Control in Nikon Capture NX 2 (24-70)

2008-07-07 Zeiss ZF 18mm f/3.5 Distagon MTF, Distortion, etc

2008-06-14 New article on vignetting

2008-04-30 The future of resolution, 36 megapixels?

2008-04-03 Coastal Optics 60mm f/4 UV-VIS-IR APO Macro

2008-03-30 Atmospheric distortion

2008-02-15 Lens distortion

2008-01-23 Coastal Optics 60/4 APO macro in color

2008-01-20 Coastal Optics 60mm f/4 APO macro Ultraviolet (UV)

2008-01-18 Coastal Optics 60mm f/4 UV/VIS/IR APO macro (more)

2008-01-16 Coastal Optics 60mm f/4 UV/VIS/IR APO macro

2007

2007-11-08 Coastal Optics UV-VISIBLE-IR 60mm f/4 APO Macro

2007-09-28 Zeiss 100mm f/2 Makro-Planar “ARRI” optics

2007-09-17 Zeiss ZF 28mm f/2 Distagon announced

2007-07-08 Zeiss 100mm f/2 Makro-Planar — best of the best

2007-07-04 Shooting stars followup

2007-07-03 Focusing on infinity / shooting stars

2007-03-03 Evolution of digital camera features

2006

2006-07-31 Double image in out-of-focus background (Canon EF 85mm/f1.2L II USM)

2006-06-19 Fujifilm F30 point and shoot

Newly In Stock: SEE ALL...
Sony Mirrorless wish list • Deals on Sony
$2195 Leica 35mm f/2 Summicron-SL ASPH. Lens (L-Mount) IN STOCK in Lenses: Mirrorless
$498 SAVE $100 = 16.0% Panasonic 85mm f/1.8 Lumix S IN STOCK in Lenses: Mirrorless
$11999 Canon 400mm f/2.8 RF L IS USM IN STOCK in Lenses: Mirrorless
$3999 SAVE $900 = 18.0% Apple 16.2" MacBook Pro with M1 Max Chip (Late 2021, Space Gray) IN STOCK in Computers: Apple Macs
$3999 Apple Mac Studio with M1 Ultra (Early 2022) IN STOCK in All Other Categories
$4999 Apple 32" Pro Display XDR 16:9 Retina 6K HDR IPS Display (Standa… BACK IN STOCK in Computers: Displays

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2022 diglloyd Inc, all rights reserved.