Sharpness and Zone of Focus
Sharpness loss by focusing or zone of sharp focus..
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2024-03-16 Camera System Value Proposition: Sony A7R V vs Leica SL3 vs Fujifilm GFX100 II vs Hasselblad X2D
2024-03-11 Sony A7R V Also has a “Symmetric” Mode for Focus Bracketing.
2024-03-11 Focus Bracketing to Find the Best Overall Image in a 3D Scene
2024-03-11 Hasselblad X2D 100C: Step Size for its Focus Bracketing Feature
2024-03-10 Botched Design: Leica SL3/Leica SL2 has no Focus Stacking / Focus Bracketing Support?
2024-03-07 Leica SL3: 60 Megapixels, 8K Video, etc
2024-03-06 Hasselblad XCD 28mm f/4 P
2024-01-10 Reader Question: Nikon D850 Monochrome Autofocus 📹
2023-09-12 NEW! Sony FE 16-35mm f/2.8 GM II
2023-08-19 Fujifilm GFX100S Autofocus is Garbage-Grade
2023-08-04 Nikon Z8: Autofocus Errors in Dim Light
2023-07-31 Fujifilm GFX100S Focus Bracketing: Fails to Reach INF Focus
2023-07-31 Sony A7R V Focus Bracketing is an Unreliable Engineering Dumpster Fire
2023-05-29 Reader Comment: “Given up on Sony A7R V automatic focus shift shooting/focus bracketing”
2023-04-13 Rehashed Design: Leica 50mm f/1.4 Summilux-M ASPH II (2023 version)
2023-01-17 Sony FE 20-70mm f/4G: Appealing Zoom Range, How Good Will It Be?
2023-01-08 Sony A7R V Pixel Shift on Complex Outdoor Scenes: a Stunning Advance in Image Quality
2023-01-08 Reader Comment: Sony A7R V vs Sony A1 Pixel Shift, Focus Bracketing for Focus Stacking
2023-01-05 Sony A7R V: Issues with Focus Bracketing for Focus Stacking — Yet Another Bug
2023-01-02 Sony A7R V: Issues with Focus Bracketing for Focus Stacking
2022-12-13 Sony A7R V: Focus Bracketing Feature Cannot be Relied Upon
2022-12-13 Sony A7R V: File Numbering — Resets to 0001 with each Focus Bracketing Series
2022-12-05 Sony A7R V: Focus Bracketing for Focus Stacking
2022-10-09 Hasselblad X2D: Usability, Operating Issues, Autofocus
2022-09-15 Leica Upgrades Leica 35mm f/1.4 Summilux-M ASPH Physical Design
2022-09-14 Hasselblad X2D to Support Focus Bracketing
Sharpness loss by focusing or zone of sharp focus..
Maximizing image quality, dynamic range, minimizing digital noise. .
Focusing is more complicated than it first appears..
Focusing accuracy and errors..
Using your camera’s mirror lockup, self timer, and Live View features..
Increasing Depth of Field by means other than stopping down..
Bypass the limits on depth of field and diffraction..
Best practices for shooting stacking frames..
Zone of focus, not plane of focus.
Elusive sharpness, depending on aperture.
Focus shift with a variety of lenses..
Understanding resolution and contrast graphs..
Secondary Longitudinal Chromatic Aberration (SLOCA)..
How to verify a good sample and assess all aspects of lens performance..
Illuminating examples of lens behavior..
Visible spectrum, cameras, color space, infrared vs. color & examples..
All about shooting in infrared..
Unique challenges of digital infrared..
Conclusions and where to find products and additional information..
How Canon lenses perform for infrared use..
How Nikon-compatible lenses perform for infrared use..
High-resolution L-mount full-frame from Panasonic..
Compact normal lens for L-Mount..
Compact ultra-wide zoom lens for L-Mount..
All-arounder entry-level mid-range zoom for L-Mount..
Premium fast normal lens for L-Mount..
Compact normal lens for L-Mount..
Image stabilized classic 70-200mm for L-Mount..
60 megapixel 3rd generation..
47 megapixel with Multi-Shot Hi-Res mode..
24-Megapixel vs mirrorless..
Ultra wide angle premium zoom lens relying on distortion correction..
All-arounder zoom with dubious optical compromises..
Fast short wide angle lens for L-Mount cameras..
Fast apochromatic prime/wide lens for L-Mount cameras..
Fast apochromatic prime lens for L-Mount cameras..
Fast short normal lens for L-Mount cameras..
Fast short telephoto lens for L-Mount cameras..
Sigma/Foveon true-color sensor in a DSLR body..
The best becomes better..
Unprecedented support for focus stacking in full-frame DSLR..
Improvements on the workhorse D800E..
36 megapixels in a compact full-frame DSLR..
D800E supplement and comparisons with Nikon D800..
Nikon’s pro-body high speed low light wonder..
High speed big brick shooter..
18 megapixel big black brick, Canon’s top of the line DSLR..
22 megapixel successor to the popular 5D Mark II..
50 megapixel successor to the 22 megapixel Canon 5D Mark III..
Nikon’s finest wide angle lens..
Nikon’s finest 70-200 zoom as of 2017..
Which speed zoom for the Nikon D800/D800E?.
Nikon’s bread and butter telephoto zoom.
The 24.6 megapixel Sony A900 digital SLR is compared with Canon’ top-of-the-line 21.1MP EOS 1Ds Mark III. A field report including two comparisons with the Canon 1Ds Mark IIII, example images in color and black and white, and the Zeiss ZA 135mm f/1.8 Sonnar. Anti-Shake (SteadyShot) is assessed, as is noise behavior..
Ultra fast 200mm with gorgeous bokeh and high resolving power..
Includes: D3x resolution comparisons (res chart) with Nikon D3, Canon EOS 1Ds Mark III, resolution comparison on outdoor shot with Nikon D3, large examples, large wildlife examples, Nikon 200mm f/2 VR on D3x, long exposure noise ISO series, D3x sensitivity on diffraction, D3x dynamic range at ISO 100 vs ISO 50, D3x vs D3 color and noise..
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..
Very compact ultra wide angle..
Normal lens..
Medium telephoto with world-class chromatic correction..
Normal lens with tilt/shift.
[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..
Escape the banale postcard look by shooting landscapes at f/1.4 or f/0.95..
Full frame ultra wide angle zoom..
Full frame medium telephoto..
Macro lens focusing to life size 1:1 in a normal lens..
24-megapixel APS-C DSLR with SuperResolution true-color..
23-megapixel APS-C DSLR with an unusual feature set..
APS-C wide angle lens equivalent to 22mm on full-frame..
APS-C moderate wide angle lens equivalent to 33mm on full-frame..
APS-C normal lens equivalent to 53mm on full-frame..
Canon 100mm f/2.8L Macro IS .
Canon’s updated fast 35mm prime, evaluated on Canon 5DS R..
Canon’s versatile super telephoto..
Fast constant-aperture ultrawide zoom..
Mid-range optimized groundbreaking f/2 zoom..
The fastest extreme wide angle yet..
Sigma’s fast high performance wide angle..
Sigma’s fast and affordable moderate excellent wide angle..
Extraordinary optical efforts for outstanding performance..
Sigma’s fast high performance normal lens..
Sigma’s best portrait lens..
Extraordinary optical efforts for class-leading performance?.
Fastest 135mm lens yet, with ultra high performance..
Sigma’s fast telephoto APO macro lenses..
Wide angle tilt/shift lens at 28mm..
Nikon’s latest wide range zoom with vibration reduction and fixed f/4 aperture..
Nikon’s classic-design manual focus moderate wide angle..
Ultra compact pancake lens with nice bokeh.
Nikon’s classic high speed normal lens.
Nikon’s latest 50mm lens compared with the Zeiss ZF 50/1.4, Nikon 50/1.4D and Sigma 50/1.4..
Nikon’s High Performance Moderately-Priced 50mm..
Nikon’s High performance normal lens.
Nikon’s workhorse 200mm macro lens, and not just sharp at close-ups!.
Nikon’s fast ultra wide angle..
Versatile image-stabilized mid-range zoom..
Versatile autofocus wide angle..
State of the art design in a fast 24mm lens. Includes full-resolution images at f/1.4..
An ultra-fast older design still offers appeal on modern digital..
Comparing the new Nikon 60mm to its predecessors, and the Coastal Optics 60/4 APO..
A superlative multi-spectral lens with perfect color correction..
Extreme wide angle zoom..
Is the 3rd time the charm?.
Canon’s compact image stabilized wide angle zoom..
Canon’s premium mid-range zooms..
A fast moderate wide angle lens with some practical difficulties..
State of the art design in a fast 35mm lens..
Relatively inexpensive alternative to the pro 35/1.4G..
State of the art design in a fast 85mm lens..
Nikon’s best-ever f/1.4 lens?.
Compact and lightweight travel-friendly telephoto..
Relatively compact super-telephoto zoom..
A review of Canon’s 200mm f/2L mini super telephoto. Not just for sports, it makes a great landscape lens..
A review of Canon’s new 70-200mm zoom, along with comparisons to other models and the 200mm f/2L IS. Extensive comparisons at multiple focal lengths..
A review of Canon’s new 100-400mm zoom.
Comparing the 16-35mm f/2.8L II to most of Canon’s wide angle prime lenses. Optical performance, ergonomics, focus, build quality..
Comparing the Canon 17-40mm f/4L and 16-35mm f/2.L II..
Nikon’s ultra wide angle zoom and the Nikon 14mm f/2.8, critical focus shift behavior..
Ultra wide angle lens for Canon and Nikon..
Focus shift assesments of a wide variety of lenses of various brands. Shows a range of apertures for each lens and the mount of focus shift, discusses how to compensate for it..
Articles written for MediumFormat.com..
Phase One XF System, Phase One IQ4, Schneider Kreuznach Lenses.
Wide angle 24mm equivalent for Phase One XF system.
100 megapixels in a portable package!.
100 megapixels in a body the size of a 35mm DSLR!.
100 megapixels in a portable package!.
100 megapixels in a portable package!.
Adapting lenses delivers degraded results in most cases..
Experience, reader insights, etc..
Image quality assessments..
Ultra wide angle equivalent to 19mm f/3.3. .
Compact wide angle.
Mid-range zoom lens equivalent to 26-53mm f/3.3..
Compact wide angle.
Moderate wide angle equivalent to 37mm f/2.3..
Slightly long zoom lens equivalent to 37-82mm f/3.3..
Slightly wide compact normal lens equivalent to 41mm f/2.9..
Standard normal lens equivalent to 52mm f/2.3..
Ultra high speed telephoto equivalent to 90mm f/1.6..
High performance macro photography on medium format, equivalent to 99mm f/3.3..
Telephoto equivalent to 200mm lens. .
High performance moderate wide angle.
High performance all-arounder macro lens.
Mirrorless large format with leaf shutter lenses, 3rd generation..
Mirrorless large format with leaf shutter lenses, 2nd generation..
Mirrorless large format with leaf shutter lenses..
21mm equivalent..
25mm equivalent..
Normal lens equivqlent to 32mm..
Moderate wide angle..
Normal lens equivqlent to 45mm..
Moderate telephoto..
Normal lens equivqlent to 45mm..
Telephoto macro lens, 99mm equivalent..
Moderate telephoto..
A price/performance breakthrough?.
A variety of 645 lens tests on the 645D.
Ultra wide angle lens for Pentax 645..
Moderate wide angle lens for Pentax 645..
How does Hasselblad’s 3rd generation medium format entry measure up?.
How does Leica’s medium format entry measure up in ergonomics, image quality, etc?.
Examples and comparison from the various lenses.
The last CCD-sensor Leica S model..
Extreme wide angle with ultra high performance..
Moderate wide angle with low distortion..
The fastest S lens..
Highest performing 25mm from Zeiss ever..
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..
Start here to best utilize this guide..
Sharpness and rendering..
Ultra high performance in an extreme wild wide angle lens..
A brilliant, but also colorful character..
Brilliant imaging, even wide open, but with a few quirks. (Review in progress) .
Ultra high performance with a fast aperture..
A gem with unusual close-focus..
An artist’s drawing tool..
Strokes of a master..
Balance and poise..
Comparing the two 50mm options near and far, more comparisons coming..
Fast high performance APO wide angle..
Ultra high performance apochromatic normal lens, first in the Otus line..
Rendering style, bokeh and beauty..
Ultra high performance apochromatic medium telephoto, overview and technical..
Rendering style, bokeh and 'transparency' without peer..
Razor sharp with gorgeous bokeh..
True-to-life imagery..
King of bokeh! Corner-to-corner sharpness, world class..
Beautiful bokeh, razor sharp, superb color correction..
Summary and wrap-up..
Untapped potential for greatly improved image quality..
Articles written for Lenspire.ZEISS.com..
What to look for in a binocular, plus reviews..
Out of the way places and wonders..
Focus accuracy and focus shift..
Miscellaneous reviews..
Questions and answers on photography and computers and more..
High performance prime lenses for Sony NEX and Fujifilm X..
Accurate focus and ease for your eyes..
Zeiss ZF.2 and Zeiss ZE Lenses For Canon and Nikon.
A reference lens for color correction..
Overview and assessments of Canon lenses.
Overview and assessments of Nikon lenses.
Leica S2 37.5 megapixel DSLR and its lenses..
Lenses for Leica M cameras, especially the M9.
Beyond deep red, seeing the invisible..
Infrared Cameras Compared: Fuji S3 Pro UVIR, Nikon D70-IR, Canon EOS 5D-IR ..
Vintage 2006 comparative review of Nikon D200 vs Nikon D2x..
Canon’s first full-frame mirrorless..
Canon’s high-res mirrorless..
Compact ultra-wide zoom..
Compact ultra-wide..
Fast standard zoom lens..
Bread and butter all-around zoom..
All-arounder compact lens with macro capability..
Fast macro lens..
Compact telephoto zoom..
Setup, IBIS performance, focusing..
Setup, IBIS performance, focusing..
Setup, IBIS performance, focusing..
Fast ultra wide angle for Nikon Z..
Fast wide angle for Nikon Z..
Ultra-wide fast zoom..
Ultra wide compact zoom for Nikon Z cameras..
Ultra-wide zoom lens..
Pancake zoom, wide angle to normal..
Fast mid-range zoom expressly designed for Nikon Z cameras..
Mid-range zoom expressly designed for Nikon Z cameras..
Moderate wide angle expressly designed for Nikon Z cameras..
Fast portrait telephoto for Nikon Z..
Fast portrait telephoto for Nikon Z..
5th Generation standard-setting camera..
Menus, buttons, customization..
Eye autofocus with humans, animals, birds..
4th Generation standard-setting camera..
Bad behaviors, anti-design, issues ..
Attention to details: a solid upgrade over the A7R II..
Attention to details: a big upgrade over the A7R..
Full frame compact mirrorless with interchangeable lenses..
Blackout-free 20 fps speed demon..
Sensor stabilized 24MP full-frame..
How to configure the camera for serious shooting..
Ultra high performance extreme wide angle..
High performance wide angle..
High performance, high speed..
Fast wide angle..
High performance mild wide-angle..
Fast and gorgeous moderate wide angle Zeiss design..
Fast high performance normal lens of Zeiss design..
Compact macro lens focusing to 1:1..
Compact moderate wide angle for Sony mirrorless..
High performance, high speed..
High performance, high speed..
Compact normal lens for full-frame Sony mirrorless..
Top-grade medium telephoto..
Razor sharp medium telephoto with apodization filter..
Native-mount macro length designed by Zeiss..
Top-grade telephoto..
Outstanding fast wide angle, DSLR optical design..
Native-mount ultra wide angle high performance zoom for mirrorless..
Native-mount mid-range zoom for mirrorless..
Ultra high speed native-mount moderate wide angle..
Fast native-mount moderate wide angle..
Compact native-mount wide angle..
Compact native-mount normal lens..
Ultra high performance medium telephoto..
Highly corrected medium telephoto..
Macro lens also excellent for all-around shooting..
High-grade manual focus wide-normal lens..
Ultra high-speed normal lens..
High-grade manual focus normal lens..
Ultra high grade macro all-arounder..
Anything wider would be a fisheye..
Ultra wide native mount manual focus lens for Sony mirrorless..
Fast high performance manual focus wide angle..
Fast mild wide angle lens..
Fast lens speed with curious rendering..
High-grade manual focus wide-normal lens..
Fast lens speed for versatile rendering..
High-grade manual focus normal lens..
Ultra high grade macro all-arounder..
Ultra fast medium telephoto manual focus lens..
Speed to match the Leica Noctilux..
Speed to match the Leica Noctilux-M, based on Mitakon Zonghyi optics..
Fast extreme wide angle zoom..
Pro-grade f/2.8 wide angle zoom, updated..
Pro-grade f/2.8 wide angle zoom..
Comapact ultra-wide zoom for Sony full frame mirrorless..
Wide range zoom aimed at bloggers..
Premiere mid-range zoom for Sony full frame mirrorless.
Compact short-range zoom..
Wide mid-range zoom targeted at video shooters..
Barely good-enough telephoto zoom for Sony full frame mirrorless.
Compact telephoto macro zoom.
Compact long range telephoto zoom for Sony full frame mirrorless.
Hand-holdable super telephoto zoom..
Wide angle lens adapted from DSLR, native E-mount, all manual..
Use Leica M lenses on a digital back designed for them..
The best compact big-sensor digital camera yet?.
Fixed 28mm lens with APS-C sensor free of anti-aliasing blur with wonderful color..
Razor sharp 28mm lens on APS-C sensor and outstanding usability and features..
Diminutive full-frame camera with 35mm f/2 fixed lens..
Full frame camera in an ultra-compact body with or without anti-aliasing filter..
Stunningly high image quality in a 20MP point and wide range zoom..
Wide angle zoom equivalent (14-28mm equivalent)..
A high performance mid-range zoom..
A fast moderate wide angle..
Fast portrait lens..
Native Micro Four Thirds macro lens..
Beautiful bokeh, long reach fast speed, compact lens..
A weak sibling covers the wide end.
High performance super telephoto..
A worthy upddate to the E-M5 with pro-grade build quality..
Interchangeable lenses on a 16MP APS-C sensor.
Fujifilm's 24MP APS-C offering..
Wide angle zoom equivalent to 15-36mm.
Compact moderate wide angle..
Apodization filter version of the 56/1.2..
Short telephoto macro lens..
24 or 16 megapixels in a compact body with APS-C sensor..
Moderate wide angle for Sony NEX..
Manual focus lenses for Sony Full-Frame Sony Mirrorless..
Outstanding ultra wide angle performer..
Outstanding wide angle, superb performer..
Zeiss autofocus lenses Sony full-frame mirrorless..
Autofocus extreme wide angle for Sony full-frame mirrorless..
Autofocus wide angle for Sony full-frame mirrorless..
All-around slightly wide angle/normal with close focus..
Autofocus portrait lens for Sony full-frame mirrorless..
Ultra wide angle lens for Sony NEX or Fujifilm X..
Normal lens for Sony NEX or Fujifilm X..
Moderate telephoto macro lens for Sony NEX or Fujifilm X. Useful on full frame too!.
Leica’s 28-70mm APS-C compact camera..
Foveon X3 true-color sensor for outstanding resolution..
Leica M 60 Megapixels..
Leica M 60-megapixel monochrome sensor..
Leica M 40 Megapixels..
Leica M 40 megapixel monochrome sensor..
Leica M mount in slim body with SL-type sensor..
Specific issues affecting usability..
Overall design and behavior..
Relative sharpness and performance vs APS-C cameras..
Field shooting the Leica MM, and comparisons..
24-megapixel fixed lens compact full-frame..
High resolution digital rangefinder.
Focusing issue.
Modern digital features lacking with the M9..
How good is Leica quality control?.
Focal lengths, color, weight and travel considerations. (relevant, but dated/old material).
Leica’s ultra wide angle zoom lens..
Leica’s fastest and widest lens..
Leica’s best-performing 21mm..
Leica’s fast wide angle..
A discontinued but excellent 24mm..
Leica’s best-performing 24mm, and with a flat field..
Leica’s fast 28mm..
Leica’s widest lens utilizing built-in frame lines..
Tweaked 2016 redesign..
Leica’s smallest and lightest M lens with superlative performance..
Leica’s superlative and most natural lens for the M..
High performance moderate wide angle..
Leica’s f/2 35mm for the M..
Six models to choose from..
World’s fastest 50mm full-frame lens..
Leica’s superlative normal lens..
High performance but flawed 50mm normal lens..
Ghosting and veiling and ring flare pre/post production fix..
Leica’s compact low-distortion normal lens..
Leica’s ultra high grade and ultra fast modern short telephoto..
Leica’s retro telephoto..
Leica’s compact 90mm for the M..
Diminutive telephoto and macro lens..
General discussion of R lenses on M..
Compact lens for portraiture or similar..
Superb all-around macro and general-purpose lens..
World’s best mid-range telephoto lens..
Compact and ultra high performance long telephoto..
Notes and examples..
Fast and ultra high performance moderate wide angle rangefinder lens..
All around razor sharp performer..
Ultra high performance (discontinued).
Fast high performance wide angle..
Compact performer..
Fastest 35mm lens for Leica M, great ergonomics..
World-class performer for Leica M..
A slightly slower, but smaller and lighter alternative to the Noctilux, at 1/10 the price..
ARCHIVAL MATERIAL. Terrific backup bodies or even primary body for M-mount lenses..
2024-03-16 Camera System Value Proposition: Sony A7R V vs Leica SL3 vs Fujifilm GFX100 II vs Hasselblad X2D
2024-03-11 Sony A7R V Also has a “Symmetric” Mode for Focus Bracketing.
2024-03-11 Focus Bracketing to Find the Best Overall Image in a 3D Scene
2024-03-11 Hasselblad X2D 100C: Step Size for its Focus Bracketing Feature
2024-03-10 Botched Design: Leica SL3/Leica SL2 has no Focus Stacking / Focus Bracketing Support?
2024-03-07 Leica SL3: 60 Megapixels, 8K Video, etc
2024-03-06 Hasselblad XCD 28mm f/4 P
2024-01-10 Reader Question: Nikon D850 Monochrome Autofocus 📹
2023-09-12 NEW! Sony FE 16-35mm f/2.8 GM II
2023-08-19 Fujifilm GFX100S Autofocus is Garbage-Grade
2023-08-04 Nikon Z8: Autofocus Errors in Dim Light
2023-07-31 Fujifilm GFX100S Focus Bracketing: Fails to Reach INF Focus
2023-07-31 Sony A7R V Focus Bracketing is an Unreliable Engineering Dumpster Fire
2023-05-29 Reader Comment: “Given up on Sony A7R V automatic focus shift shooting/focus bracketing”
2023-04-13 Rehashed Design: Leica 50mm f/1.4 Summilux-M ASPH II (2023 version)
2023-01-17 Sony FE 20-70mm f/4G: Appealing Zoom Range, How Good Will It Be?
2023-01-08 Sony A7R V Pixel Shift on Complex Outdoor Scenes: a Stunning Advance in Image Quality
2023-01-08 Reader Comment: Sony A7R V vs Sony A1 Pixel Shift, Focus Bracketing for Focus Stacking
2023-01-05 Sony A7R V: Issues with Focus Bracketing for Focus Stacking — Yet Another Bug
2023-01-02 Sony A7R V: Issues with Focus Bracketing for Focus Stacking
2022-12-13 Sony A7R V: Focus Bracketing Feature Cannot be Relied Upon
2022-12-13 Sony A7R V: File Numbering — Resets to 0001 with each Focus Bracketing Series
2022-12-05 Sony A7R V: Focus Bracketing for Focus Stacking
2022-10-09 Hasselblad X2D: Usability, Operating Issues, Autofocus
2022-09-15 Leica Upgrades Leica 35mm f/1.4 Summilux-M ASPH Physical Design
2022-09-14 Hasselblad X2D to Support Focus Bracketing
2022-09-07 Announced: Hasselblad X2D-100C with 100 Megapixel Sensor, IBIS, Phase-Detect AF
2022-04-27 Sony FE 24-70mm f/2.8 GM II: Unprecedented Performance in a Mid-Range Zoom?
2022-04-06 Recent Experience on Fujifilm GFX100S on Focusing Precision and Accuracy in the Field
2022-02-26 Autofocus Accuracy: Fujifilm GFX100S + Fujifilm GF 35-70mm f/4.5-5.6
2022-01-14 Leica M11 — Rangefinder vs EVF Focusing Accuracy
2021-10-29 Canon RF 35mm f/1.8 Macro STM: Focusing Accuracy on Canon EOS R5
2021-10-27 Comparing Lenses is Darn Challenging: Canon RF Zooms
2021-07-07 Voigtlander FE 35mm f/2 APO-Lanthar: Focus Shift in Landscapes, Patriarch Grove
2021-06-20 Reader Comment: Aging Eyes and Autofocus
2021-06-02 Fujifilm GF 80mm f/1.7 R WR: Is It Prone to AF Motor Failures?
2021-05-07 Test Protocol for Focus Creep / Unstable Lens Focus
2021-04-28 Fujifilm GFX100S + Fujifilm GF 30mm f/3.5: Serious Front-Focusing Errors
2021-04-27 NEW! Sigma FE 35mm f/1.4 DG DN Art
2021-04-26 Reader Question: Which Lenses and Camera for Aging Eyes?
2021-04-09 Reader Comments: Fujifilm GFX100S
2021-04-04 Voigtlander FE 65mm f/2 APO-Lanthar Aspherical Defocuses Itself When Angled Up or Down (Focus Creep)
2021-03-13 Looking for Reader Suggestions: Best Ways to Acquire and Track Human and Animal Eyes
2021-02-16 Voigtlander M 50mm f/2 APO-Lanthar Now Available for Leica M Mount
2020-12-13 Leica M10 Monochrome: Filters and Focus Error / Sharpness
2020-10-18 Swing and Tilt: Subject Distance vs Lens Focusing Offset
2020-10-14 Nikon Z7 II Narrows the Gap with Last Year’s Cameras
2020-09-21 Reader Comment: Magnifying Eyepiece for DSLRs
2020-07-10 Canon EOS R5 Supports Focus Stacking via “Focus Bracketing” Feature
2020-05-24 Hasselblad X1D II 50C: Operational and Focusing Bugs
2019-12-04 Attention all Camera Makers: 23.5 Things To Please Your Customers
2019-09-14 Reader Comment: Nikon Z7 vs Nikon Z6 for Focusing Tracking and Noise
2019-09-02 Reader Comment: Focusing the Panasonic S1R Manually
2019-09-01 First Look at the Sigma 35mm f/1.2 DG DN Art: Lack Micro Contrast at f/1.2 and f/1.4
2019-08-06 Fujifilm GFX100: Troubling Autofocus Errors, FOCUS BKT Problems
2019-07-25 Fujifilm GFX100: Severe Autofocus Errors
2019-07-23 Reader Comment: Sony Mirrorless Lenses on Nikon Z7 via Techart PRO Autofocus Adapter
2019-06-20 Focusing Zeiss DSLR Lenses For Peak Performance, PART ONE: The Challenges 📹
2019-05-26 Focus Shift, a General Discussion
2019-04-17 Panasonic S1R: a Way to get 2X more Magnification in Manual Focus
2019-04-10 Panasonic S1R: Magnified Live View with its Gorgeous High-Res EVF = Total FAIL
2018-10-30 Nikon Z7 Autofocus: Recommended Protocol for Best Focus (static subjects), Plus When It Fails
2018-10-14 Must Read: Nikon Z7 Aperture/Lens Diaphragm Behavior While Viewing/Focusing vs Focus Shift in Lenses
2018-10-10 Nikon Z7 Autofocus Accuracy: Pinpoint AF vs Magnified Live View Reference Frame
2018-10-09 Nikon Z7: Image Sharpness vs Zone of Focus, Autofocus Error and Mitigation
2018-10-03 Reader Comments: Nikon Z7 Focusing and IBIS vs Sony Mirrorless
2018-09-26 Leica S3 Medium Format: an Updated Dinosaur
2018-09-20 Coming Soon: Sony FE 24mm f/1.4 GM
2018-09-01 Reader Comment: Nikon FTZ Lens Adapter vs 3rd Party Lenses — Autofocus Might Not Work
2018-08-25 Nikon Z7: Pinpoint AF
2018-07-31 Reader Question: Focus Shift with Nikon Mirrorless
2018-07-11 Reader Comment: Sony Mirrorless Focusing in Low Light
2018-07-06 Sigma 105mm f/1.4 DG HSM Art for Portraits (UPDATED with examples now published)
2018-06-22 Sigma DG HSM Art Lenses Now Available for Sony Mirrorless
2018-06-14 Leica 90mm f/2.2 Thambar-M: Focusing Challenges, with examples
2018-05-25 Leica 75mm f/1.25 Noctilux-M ASPH
2018-02-14 Lenses Coming for Review for Sony Mirrorless
2018-02-14 New Zeiss Loxia 25mm f/2.4 Distagon
2018-01-30 Fujifilm GFX Does not Always Focus at Full Aperture, Could it Be Compensation for Focus Shift?
2017-12-18 Reader Comments: Sony A7R III, Nikon D850, EVF, Focusing, Landscape
2017-12-08 Reader Comment: Fujifilm GFX Focusing Precision and Skewed Lenses
2017-11-14 The Significance of Automated Focus Stepping for Focus Stacking (Nikon D850)
2017-11-08 Reader Comment: Zeiss Milvus 25mm f/1.4 vs Nikon AF-S 24mm f/1.4 (manual focus vs autofocus)
2017-10-28 Critical Tip on Focus Stacking Focusing, Particularly with Nikon D850 Autofocus
2017-10-17 Nikon D850, Priorities
2017-10-14 Nikon D850 Experience Report: Adjusting Autofocus Accuracy with the Nikon 105mm f/1.4E
2017-10-08 Nikon D850: New Copy Seems Good (except for infinity focus)
2017-08-26 Nikon D850: Pinpoint AF Mode, Focus Peaking, Electronic Rangefinder
2017-08-26 Nikon D850: Metering and Autofocus
2017-08-26 Nikon D850: Focusing and Metering
2017-08-26 Reader Question: Best Autofocus Lenses for Nikon D850
2017-08-12 Fujifilm GFX Does not Always Focus at Full Aperture
2017-08-10 Fujifilm GFX 50s Firmware Update Might Degrade Focusing by Stopping Down?
2017-08-08 Fujifilm Issues a Firmware Update Claiming Fixes for Two Focusing Bugs, AKA “phenomenon”
2017-06-21 REVIEWED: New Zeiss Milvus 35mm f/1.4
2017-06-20 Leica M10 Coming This Week
2017-06-02 Nikon AF-S 28mm f/1.4E ED
2017-05-16 Nikon Appears to be Doing Focus Shift Compensation, at Least with the Nikon D810 and 70-200/2.8E
2017-05-09 Fujifilm GFX Sensor Quality
2017-05-07 Sigma 135mm f/1.8 DG HSM Art: How Good is Autofocus Accuracy on Nikon D810
2017-04-25 Reader Comment: Hasselblad X1D
2017-04-24 Adapting Lenses to the Fujifilm GFX
2017-04-19 Sony’s New α9 Camera Appears to Target the High-End Sport Shooter Market
2017-04-11 Fujifilm GFX Focusing Precision and Aperture Series: Mining Town Church
2017-03-26 Hasselblad X1D: Unacceptable Autofocus Errors with Hasselblad XCD 90mm f/3.2 (Update)
2017-03-25 Hasselblad X1D: Unacceptable Autofocus Errors with Hasselblad XCD 90mm f/3.2
2017-03-08 Reader Question: Focus Shift (stems from Fujifilm GFX findings, but applies to all brands) 📹
2017-01-18 Leica M10: Inertial Design
2017-01-08 Reader Comment: More Binocular Thoughts (continued) from Roy P
2016-10-18 Canon 16-35mm f/2.8L III
2016-10-15 Why Lens Performance Matters for Focus Stacking
2016-10-15 Reader Question: Focusing with Sony Mirrorless
2016-09-19 Olympus OM-D E-M1 Mark II: Sport Shooter’s Dream?
2016-09-19 Olympus 25mm f/1.2 PRO
2016-09-19 Sigma 12-24mm f/4 DG HSM Art in Nikon, Canon, Sigma SA Mount
2016-09-19 Sigma 85mm f/1.4 DG HSM Art in Nikon, Canon, Sigma SA Mount
2016-09-15 Zeiss Announces Loxia 85mm f/2.4 for Sony Mirrorless
2016-09-08 Zeiss Announces 3 Milvus Lenses for Nikon and Canon DSLRs
2016-09-01 Sony FE 50mm f/2.8 Macro
2016-07-27 Nikon 105mm f/1.4E
2016-07-25 Leica SL Focusing Errors
2016-06-16 Home Today, Leica SL, Pentax K1, and More Coming Soon
2016-05-22 Bellows Systems for Nikon, Canon, Leica, Sony: Why Consider Them?
2016-05-10 Sony FE PZ 28-135mm f/4G OSS
2016-05-08 Sony 85mm f/1.4 Scratchy/Noisy Focusing: I Heard None with my Sample
2016-05-05 Shipping: Sony FE 70-300mm f/4.5-56 G OSS
2016-05-01 EVF Mirrorless vs DLSR
2016-04-24 Sony A7R II + Sony 85mm f/1.4 GM Autofocus at Moderate Outdoor Distance
2016-04-24 Nikon D5 + AF-S 85/1.4G Autofocus at Moderate Outdoor Distance
2016-04-20 Nikon D5 Autofocus on Lens Align Target at f/1.4 and f/4
2016-04-19 Sony A7R II + Sony G Master Lenses: Major Focusing Bug?
2016-04-18 Sony A7R II: Configuring Autofocus + Eye AF
2016-04-13 Sony G Master 85mm f/1.4 Focus Accuracy
2016-04-09 Sony G Master 85mm f/1.4 Scratchy/Noisy Focus with Internal Wear
2016-04-05 Panasonic Lumix DMC-GX85 Mirrorless Micro Four Thirds Powerhouse
2016-03-31 Sony FE 70-300mm f/4.5-56 G OSS
2016-02-03 Sony A6300, and the Fujifilm X-Pro2
2016-02-01 Canon EOS-1D X Mark II
2016-01-08 Leica SL: Focus Point Bug
2016-01-05 Nikon D5 and Nikon D500 Announced: 4K Video, Advanced Autofocus
2015-12-09 Sony RX1R II Autofocus: Ruined the Shoot
2015-11-29 Back Home... On Shooting in Difficult Conditions
2015-10-22 The Irrational Aim of f/1.4 Lenses
2015-10-14 Zeiss Announces the new Otus 28mm f/1.4 APO-Distagon
2015-09-21 Reader Question: Nikon or Sony?
2015-09-18 Hartblei 40mm, 80mm, 120mm SuperRotators
2015-09-15 Reader Comment: Weather Sealing on Zeiss Milvus vs Zeiss Otus
2015-08-26 Announced: Canon 35mm f/1.4L II
2015-08-09 Sony 90mm f/2.8: Bad Sample (NOW WITH EXAMPLES)
2015-07-28 Leica S Typ 006: Autofocus Errors
2015-07-21 Will the Leica Q Kill the Leica M?
2015-07-11 Leica Q: Autofocus Fails Permanently (well, actually a weird cross-coupling of AF to info display)
2015-07-07 Sony A7R II: Is it the Death Knell for Leica M?
2015-06-10 Announced: Sony RX10 Mark II, Sony RX100 Mark IV
2015-05-07 Leica 24-Megapixel Leica M Monochrom Typ 246 Starts Shipping
2015-04-22 Zeiss Announces 'Batis' line: Zeiss Batis 25mm f/2 Distagon and Zeiss Batis 85mm f/1.8 Sonnar
2015-04-18 Don’t Confuse Focusing Distance with Reproduction Ratio aka Magnification
2015-04-04 Tamron SP 15-30mm f/2.8 Di VC USD: Focusing Problems and Lens Skew
2015-02-09 Sigma Announces 24mm f/1.4 DG HSM A Lens for DSLRs, Joining its Superb 35mm and 50mm Siblings
2015-02-05 Canon 11-24mm f/4L USM Ultra Wide Zoom
2014-11-09 Zeiss Loxia Ergonomics and Focusing
2014-10-17 Focus Shift Compared: Nikon 20/1.8G vs 14-24/2.8
2014-09-16 Zeiss ZM 35mm f/1.4 Distagon for Leica M: Best 35mm M Lens Yet?
2014-09-02 Zeiss Loxia: Manual Focus All Metal Build Lenses for Mirrorless Full Frame
2014-08-26 Nikon D810: Recommended Picture Control Settings for Magnified Live View Focusing
2014-07-22 Reader Comments: Lenses for Sports Photography
2014-07-03 Sigma 50mm f/1.4 DG HSM A: Best Autofocus Lens, In Stock for Canon
2014-06-07 Sigma 50mm f/1.4 DG HSM: Discussing Optical and Autofocus Expectations, LOCA
2014-05-20 EVF and Sensor Resolution: Higher is So Much Better for Critical Focus
2014-05-19 Tilt/Shift Lenses: Focusing for Optimal Tilt Placement + Focus Peaking Assist
2014-05-13 Canon Announces 16-35mm f/4L IS
2014-05-11 Ricoh GR: Close Range Shooting for Travel Needs?
2014-04-18 Consistent Focusing Accuracy Requires a High-Resolution EVF: Leica M vs Sony
2014-04-14 Pentax 645Z 51-Megapixel Medium Format DSLR, 13 Pentax Lenses Now Avail in USA
2014-04-10 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2014-03-03 Autofocus Done the Right Way
2014-02-19 Reader Comment: Zacuto Loupe: “amazed by the result”
2014-02-03 Samyang FE 24mm T/1.5 Cine E-Mount on Sony A7
2014-01-22 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2014-01-06 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)
2014-01-05 Sigma SD1 Merrill: Autofocus Errors
2013-12-05 Sony A7R: the Kitchen Sink Menu System Design Paradigm is Alive and Well
2013-11-19 Mono Lake Panorama with Leica 75mm f/2 APO-Summicron-M ASPH
2013-10-27 Reader Comment: Sony RX1R Focusing at Shooting Aperture
2013-10-25 Sigma 24-105mm f/4 DG HSM OIS zoom for Nikon, Canon, Sony, Sigma DSLRs
2013-10-10 DSLRs Still Have no EVF Option
2013-10-03 Canon 200-400mm
2013-09-15 Fujifilm XF 23mm f/1.4 R
2013-09-13 What Every Leica X Vario User Should Know About Autofocus and Manual Focus
2013-08-08 Guide to Leica Subscribers: Which Leica M Lenses?
2013-08-01 Field Curvature of the Zeiss 15mm f/2.8 Distagon with Focus Bracketing
2013-07-31 Is the Full Frame DSLR the New Medium Format? What do DSLRs Lack?
2013-07-19 Reader Comment on Ricoh GR: Leaf Shutter In Lens and ND Filter + Vision & Autofocus
2013-07-19 Reader Comment on Ricoh GR: Leaf Shutter In Lens and ND Filter + Vision & Autofocus
2013-07-12 Focus Bracketing for Peak Sharpness with a 15mm Lens
2013-05-20 Autofocus with Sony NEX-7
2013-05-10 Sony NEX-7 Autofocus Insanity
2013-05-09 Zeiss Touit Lenses: the Birds Roost
2013-05-09 Zeiss Touit Lenses to Arrive Friday
2013-05-05 Zeiss 50mm f/2 Makro-Planar: Future Potential on ~56 Megapixel DSLR
2013-05-04 Zeiss Touit Autofocus Lenses for Sony NEX or Fuji X Now Available for Pre-Order at B&H
2013-05-01 Zeiss Touit 32mm f/1.8 Planar — Autofocus Normal Lens for Sony NEX or Fuji X
2013-05-01 Zeiss Touit 12mm f/2.8 Distagon — Autofocus Ultra Wide Angle for Sony NEX or Fuji X
2013-04-28 EVF or LCD Zoomed-In Focusing Implementations
2013-04-27 Optical and Electronic Viewfinders: EVF + Optical + LCD = Synergy
2013-04-24 Reader Comment: Autofocus Accuracy
2013-04-23 Reader Comments: Zeiss 135mm f/2 APO-Sonnar
2013-03-31 Sigma 180mm f/2.8 APO-Macro DG HSM: Focusing and Image Stabilization
2013-03-17 Sigma 150mm and 180mm f/2.8 APO-Macro DG HSM
2013-03-06 Why an Electronic Viewfinder (EVF) is Not Optional, and Not Sufficient Either
2013-02-17 Sigma 35mm f/1.4 DG HSM: Autofocus Portraits After Fine Focus Adjust
2013-02-17 Focus Accuracy: Focusing Screens for f/1.4 Lenses in Canon, Nikon
2013-02-10 Sigma 35mm f/1.4 DG HSM: Autofocus Portraits
2013-02-10 Autofocus Accuracy: Sigma 35mm f/1.4 and Nikon AF-S 35/1.4G using Lens Align and Fine Focus Adjust
2013-01-22 Olympus Zuiko 17mm f/1.8 on E-M5: Stepped vs Continuous Focusing
2013-01-13 Canon EF 40mm f/2.8 STM: Focus Bracketing Study (applicable to ANY brand camera or lens)
2012-12-01 Setting Low Contrast for RAW Histogram vs Live View Focusing
2012-11-16 Sigma 35mm f/1.4 DG HSM for Nikon, Canon, etc
2012-10-29 Reader Question: Leica M Lenses/Focusing and Zeiss ZM 35/2 Biogon
2012-10-22 Olympus M. Zuiko 60mm f/2.8 ED Macro (Micro Four Thirds)
2012-10-15 Sigma DP1 Merrill — Autofocus Accuracy
2012-10-13 Reader Asks: Zeiss 135mm f/2 APO-Sonnar or Nikon 135mm f/2 DC?
2012-10-11 Canon 5D Mark II at B&H $1799 — Discussion
2012-09-17 24-Megapixel CMOS Leica M (Typ 240)
2012-09-14 Shitty Products
2012-09-02 Reader Comment: Autofocus Accuracy
2012-08-11 Nikon D800 / D800E autofocus Precision
2012-08-03 Autofocus Accuracy: Canon 1D X + EF 85mm f/1.2L II
2012-07-19 Zeiss 35mm f/1.4 Distagon: Focusing Manually By Eye
2012-07-09 Errors with Nikon Contrast-Detect Autofocus
2012-06-21 Why Don’t Nikon and Canon Compensate for Focus Shift? (Hasselblad Does!)
2012-06-08 Autofocus Accuracy of Nikon D800E + Nikon AF-S 28mm f/1.8G
2012-06-02 Reader Comments: Nikon D800 Autofocus, Pentaprism Blur
2012-05-10 Leica 50mm f/2 APO-Summicron-M ASPH
2012-05-04 Reader Comment: Canon 5D Mark III
2012-04-25 Nikon D800 / D800E Focusing Aid (Eye)
2012-04-18 Reader Comments on D800, 5D Mark III
2012-04-18 Nikon D800: AF-S Autofocus with Nikon 70-200mm f/2.8G VR II
2012-04-14 Nikon D800 Focusing Screens: BrightScreen and KatzEye
2012-04-14 Fuji X-Pro1+ 35/1.4 Examples
2012-04-12 Nikon D800 AF-S Autofocus Accuracy with Nikon 85mm f/1.4G
2012-04-12 Nikon D800 AF-S Autofocus Accuracy with Nikon 60mm f/2.8G
2012-04-11 Nikon D800 Autofocus Accuracy: 85/1.8G + 85/1.4G + Mosaic Target
2012-04-11 Nikon D800 AF-S Autofocus Accuracy with Nikon 85mm f/1.4G
2012-04-11 Canon 5D Mark III Autofocus With 85mm f/1.2L II (Ad-Hoc)
2012-04-10 Nikon D800 Autofocus Accuracy
2012-04-08 Reader Comments on Nikon D800 Color Gamut, Focus Accuracy, Live View
2012-04-08 Nikon D800 Autofocus Accuracy with Nikon 85mm f/1.8G
2012-04-07 Readers Comment on my Nikon D800 vs Leica S2 Shootout
2012-03-29 Nikon D800 Focusing Screens
2012-03-27 Canon 5D Mark III Examples, Focusing, Noise
2012-03-25 Canon 5D Mark III First Impressions + Reader Comments
2012-03-10 Which 28mm Leica M Lens is Best? 28/2.8 Elmarit or 28/2 Summicron?
2012-03-08 Thoughts on Canon EOS 5D Mark III, 22.3 Megapixels
2012-02-25 Reader Asks: Nikon 35mm f/1.4G Focusing Issues Resolved?
2012-02-07 Nikon D800 / D800E — Lens Requirements for 36 Megapixels
2011-12-23 New Case Study in Making Sharp Images — Leica 28mm Comparison
2011-11-21 Supposing a 36 Megapixel Nikon DSLR Arrives... What About Lenses and Technique?
2011-09-17 Leica M Usability and Versatility: Reader Experience
2011-09-17 Fuji X100 Focusing Note
2011-08-20 Reader Comments on Focusing, Live View, Really Right Stuff Tripod
2011-08-18 Reader Feedback on Making Sharp Images — Live View
2011-08-17 Product Photography: Autofocus Helps
2011-08-13 Reader Comment on Making Sharp Images Guide
2011-07-16 Autofocus Assist (Electronic Rangefinder) Accuracy
2011-06-27 Leica M9: Which Viewfinder Magnifier To Aid Focusing?
2011-06-26 Which Macro Lens for 1:1 or Better?
2011-06-21 Leica 21mm f/3.4 Super-Elmar-M ASPH
2011-06-10 Open Letter to Leica — 10 Ways To Improve the M9 Rangefinder
2011-04-25 Autofocus Doesn’t Cut It
2011-04-24 Nikon AF-S 60mm f/2.8G Macro Lens
2011-03-14 Autofocus Consistency With Canon and Nikon 35mm f/1.4 Lenses
2011-03-02 Focusing the Leica M9 with the Zeiss 3X loupe — Fantastic
2011-03-02 Accuracy of Rangefinder Focusing With Leica M and Zeiss ZM Lenses on Leica M9
2011-01-21 Focusing the Pentax 645D with the Zeiss 3X loupe
2011-01-12 Nikon 35mm f/1.4G focusing update
2011-01-05 Focusing the Pentax 645D with camera focus assist
2010-12-29 Update on Nikon 35mm f/1.4G and Nikon D3x autofocus
2010-12-29 Live View vs Autofocus with Nikon 35mm f/1.4G
2010-12-26 Nikon 35mm f/1.4G focus problems confirmed by other users
2010-12-21 Leica S2 focusing fact and fiction
2010-11-23 Reader report on manual focus accuracy, installing shims on Nikon D700
2010-11-07 Making Sharp Images updated with autofocus error study
2010-11-03 Leica S2 new examples and autofocus accuracy in the field
2010-07-14 Leica S2 37.5 megapixel DSLR review additions
2010-07-12 Correspondence with Erwin Puts on Leica M9 focusing
2010-05-10 Nikon 24mm f/1.4G autofocus study published!
2010-05-09 Nikon 24mm f/1.4G autofocus survey results
2010-05-08 Nikon 24mm f/1.4G autofocus hugely erratic
2010-05-04 Nikon AF-S 24mm f/1.4G ED review — more coming
2009-12-28 Zeiss ZF.2 lenses — focusing feel
2009-11-01 Carl Zeiss announces ZE 35mm f/2 Distagon for Canon EOS
2009-10-26 Focusing screens for your DSLR
2009-06-13 Canon 5D Mark II focusing
2008-12-16 Zeiss ZE 50mm f/1.4 Planar for Canon EOS
2008-11-11 Zeiss ZE 85mm f/1.4 Planar for Canon EOS focus problem
2008-08-14 Focusing screens for the Nikon D3
2008-07-09 Nikon D3 focusing mystery solved!
2008-05-12 Followup on Nikon D3 focusing
2008-03-25 Star focusing
2007-12-02 Nikon D3 focus problems
2007-08-28 Focusing screens for Canon EOS
2007-07-03 Focusing on infinity / shooting stars
2006-08-27 Autofocus accuracy with the Canon EOS 1Ds Mark II and 85mm/f1.2L II USM
2006-08-09 The Fujifilm S3 Pro UVIR camera
2006-07-31 Double image in out-of-focus background (Canon EF 85mm/f1.2L II USM)
2006-07-24 Infrared backfocus
$220 SAVE $130 = 37.0% Western Digital 16.0TB Western Digital Ultrastar DC HC550 3.5-in… in Storage: Hard Drives
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