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Diffraction

Getting peak performance from your lens.

How to Test A Lens

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

Image Contrast With a Polarizer

Pros and cons of using a polarizer..

Nikon D850 Image Quality

Oustanding image quality, but with some limitations..

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

Nikon’s bread and butter telephoto zoom.

Nikon AF-S Nikkor 200mm f/2G ED VR II

Ultra fast 200mm with gorgeous bokeh and high resolving power..

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..

Voigtlander 20mm f/3.5 Color-Skopar

Very compact ultra wide angle..

Voigtlander 40mm f/2.8 SL II Color-Skopar

Ultra compact normal lens..

Canon TS-E 17/4L

Ultra wide angle tilt shift with tremendous versatility.

Canon TS-E 135mm f/4L Macro

Medium-long telephoto tilt/shift lens.

Shift Lenses for Nikon and Canon

[Older material, but still relevant]. Shift lens performance of Nikon/Canon/Schneider/Olympus on various cameras..

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..

Pentax HD DA Limited 40mm f/2.8

APS-C slightly tele normal lens equivalent to 60mm on full-frame..

Canon 100mm f/2.8L Macro IS

Canon 100mm f/2.8L Macro IS .

Canon 35mm f/1.4L II

Canon’s updated fast 35mm prime, evaluated on Canon 5DS R..

Sigma 12-24mm f/4 DG HSM Art

Fast constant-aperture ultrawide zoom..

Sigma 24-35mm f/2 DG HSM Art

Mid-range optimized groundbreaking f/2 zoom..

Sigma 14mm f/1.8 DG HSM Art

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

Sigma 24mm f/1.4 DG HSM Art

Sigma’s fast high performance wide angle..

Sigma 35mm f/1.4 DG HSM Art

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

Sigma 50mm f/1.4 DG HSM Art

Sigma’s fast high performance normal lens..

Sigma 85mm f/1.4 DG HSM Art

Sigma’s best portrait lens..

Sigma 105mm f/1.4 DG HSM Art

Extraordinary optical efforts for class-leading performance?.

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..

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

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

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..

Nikon AF-S Nikkor 58mm f/1.4G

Nikon’s High performance normal lens.

Canon 24mm f/1.4L II

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

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

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

Nikon AF-S Nikkor 20mm f/1.8G

Nikon’s fast ultra wide angle..

Canon 11-24mm f/4L USM

Extreme wide angle zoom..

Canon 16-35mm f/2.8L III

Is the 3rd time the charm?.

Canon 16-35mm f/4L IS

Canon’s compact image stabilized wide angle zoom..

Nikon AF-S 85mm f/1.4G

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

Canon 200mm f/2L IS

A review of Canon’s 200mm f/2L mini super telephoto. Not just for sports, it makes a great landscape lens..

Nikon 24mm Lens Choices

Options for a 24mm lens: Nikon 14-24/2.8G, Nikon 24-70/2.8G, Nikon 24/2 AI-S, Nikon PC-E 24/3.5. Sharpness, distortion, flare, field curvature, shooting impression and ergonomics..

VIO POV.HD 1080p Helmet Camera

A helmet-mountable HD video camera for sports or action or underwater..

Sony FE 85mm f/1.4 GM

Top-grade medium telephoto..

Rokinon 12mm f/2.8 Fisheye

Fisheye lens for Sony mirrorless..

Voigtlander FE Nokton 40mm f/1.2 Aspherical

Fast lens speed for versatile rendering..

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

Ultra high grade performer at a modest price..

Mitakon Zhongyi Speedmaster 50mm f/0.95

Speed to match the Leica Noctilux..

Sony FE 12-24mm f/4 G

Extreme wide angle zoom..

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

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

Ricoh GR

Razor sharp 28mm lens on APS-C sensor and outstanding usability and features..

Sony Cybershot RX1R II

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

Panasonic Lumix G 8mm f/3.5 Fisheye

A fisheye with great contrast and high resolving power..

Panasonic Leica DG Nocticron 42.5mm f/1.2 ASPH

Fast, bright and highly corrected medium telephoto..

Olympus OM-D E-M5

Superb ergonomic design in a compact camera..

Olympus E-P1 micro-4/3 camera

Great image quality, but....

Fujifilm X-Pro2

Fujifilm's 24MP APS-C offering..

Fujifilm Fujinon XF 18mm f/2 R

A compact fast pancake lens..

Zeiss Loxia 21mm f/2.8 Distagon

Outstanding ultra wide angle performer..

Zeiss Loxia 35mm f/2 Biogon

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

Zeiss Loxia 50mm f/2 Planar

Manual focus normal lens for full-frame mirrorless..

Zeiss Loxia 85mm f/2.4 Sonnar

Manual focus telephoto lens for full-frame mirrorless..

Zeiss Batis 25mm f/2 Distagon

Autofocus wide angle for Sony full-frame mirrorless..

Zeiss Batis 85mm f/1.8 Sonnar

Autofocus portrait lens for Sony full-frame mirrorless..

Zeiss Touit 12mm f/2.8 Distagon

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

Zeiss Touit 32mm f/1.8 Planar

Normal lens for Sony NEX or Fujifilm X..

Panoramas with the iPhone 6s Plus

Shooting + post processing tips with high-res examples..

Sigma dp0 Quattro

21mm f/5.6 equivalent FOV lens..

Sigma dp2 Quattro

45mm f/2.8 equivalent FOV lens..

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

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

Hasselblad XCD 30mm f/3.5

25mm equivalent..

Pentax 645 Lenses (645D tests)

A variety of 645 lens tests on the 645D.

Image Quality Issues

Unique challenges of digital infrared..

Canon Lenses

How Canon lenses perform for infrared use..

Wrap-up and Summary

Conclusions and where to find products and additional information..

Zeiss Milvus Lenses

Outstanding build and optical quality across a wide range of focal lengths..

Milvus 15mm f/2.8

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

Milvus 21mm f/2.8

The classic 21/2.8 Distagon improved..

Milvus 25mm f/1.4

Highest performing 25mm from Zeiss ever..

Milvus 50mm f/1.4

Outstanding build and optical quality in a normal lens..

Milvus 85mm f/1.4

Outstanding build and optical quality in a medium tele..

15mm f/2.8 Distagon

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

18mm f/3.5 Distagon

A brilliant, but also colorful character..

21mm f/2.8 Distagon

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

25mm f/2 Distagon

Ultra high performance with a fast aperture..

25mm f/2.8 Distagon

A gem with unusual close-focus..

28mm f/2 Distagon

An artist’s drawing tool..

35mm f/2 Distagon

Balance and poise..

50mm f/1.4 Planar

Brilliant imaging in a compact package..

50mm f/2 Makro-Planar

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

Otus 28mm f/1.4 APO-Distagon

Fast high performance APO wide angle..

Otus 55mm f/1.4 APO-Distagon

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

Otus 55mm f/1.4 APO-Distagon Rendering Style

Rendering style, bokeh and beauty..

Otus 85mm f/1.4 APO-Planar

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

Otus 85mm f/1.4 APO-Planar Rendering Style

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

85mm f/1.4 Planar

True-to-life imagery..

100mm f/2 Makro-Planar

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

Conclusions

Summary and wrap-up..

Zeiss LensSpire Articles

Articles written for Lenspire.ZEISS.com..

Binoculars

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

Understanding optics

Understanding lens performance..

Misc Reviews

Miscellaneous reviews..

Ask Lloyd Chambers

Questions and answers on photography and computers and more..

Photo Tips

Photography Hints and Tips..

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

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

15mm f/2.8 Distagon Zeiss Interview

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

Infrared

Beyond deep red, seeing the invisible..

Nikon D200 vs D2x

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

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

Leica’s ultra wide angle zoom lens..

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

Leica’s widest prime lens..

Leica 21mm f/1.4 Summilux-M ASPH

Leica’s fastest and widest lens..

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

Leica’s best-performing 21mm..

Leica 24mm f/1.4 Summilux-M ASPH

Leica’s fast wide angle..

Leica 24mm f/3.8 Elmar-M ASPH

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

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

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

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

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

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

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

Leica M 50mm Lenses

Six models to choose from..

Leica 50mm f/0.95 Noctilux-M ASPH

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

Leica 50mm f/1.4 Summilux-M ASPH

Leica’s superlative normal lens..

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

The world’s best 50mm lens is outstanding, but with some limits..

Leica 50mm f/2 APO Flare

Ghosting and veiling and ring flare pre/post production fix..

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

Leica’s medium tele for Leica M..

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

Leica’s budget 75mm medium telephoto..

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

Leica’s compact 90mm for the M..

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

Compact lens for portraiture or similar..

Zeiss ZM 35mm f/1.4 Distagon

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

Zeiss ZM 35mm f/2 Biogon

All around razor sharp performer..

Zeiss ZM 50mm f/2 Planar

Pleasing and relatively inexpensive normal lens.

Voigtlander M 50mm f/1.1

A slightly slower, but smaller and lighter alternative to the Noctilux, at 1/10 the price..


Blog posts, reverse chronological

2018

2018-05-25 Sigma 105mm f/1.4 DG HSM Art

2017

2017-10-25 Zeiss Milvus 25mm f/1.4 Aperture Series:Flare with Sun Just Out of the Frame

2017-09-01 Voigtlander 65mm f/2 Macro APO-Lanthar Aperture Series: Sunstars and Flare (Sunstar Palm)

2017-05-17 Sony FE 12-24mm f/4 G

2016

2016-09-08 Zeiss Announces 3 Milvus Lenses for Nikon and Canon DSLRs

2016-02-09 Reader Comment: Big and Heavy Sony G Master Lenses

2015

2015-12-21 Sony RX1R II: Evaluating Flare

2015-11-13 Zeiss 21mm f/2.8 Distagon: Arc Flare vs Zeiss Milvus 21mm f/2.8

2015-10-04 Extreme Backlighting with Sony A7R II

2015-10-01 Reader Inquiry: Zeiss Batis Weather Sealing

2015-06-10 Announced: Sony RX10 Mark II, Sony RX100 Mark IV

2015-05-17 Leica 90mm f/2.4 Summarit-M Flare Series: Barn Interior, Angle of Light

2015-04-09 Leica 75mm f/2.4 Summarit-M: Veiling Flare, and Bokeh

2015-03-27 Sigma 24mm f/1.4 DG HSM Art Flare Control: Aperture Series 'Extreme Backlighting, Cherry Blossoms'

2015-03-19 Canon 11-24mm f/4L Aperture Series: Ghosting Flare Series at 24mm

2015-02-05 Canon 11-24mm f/4L USM Ultra Wide Zoom

2014

2014-11-09 Flare: Zeiss Loxia 35mm f/2 Biogon and Loxia 50mm f/2 Planar

2014-10-02 Zeiss Otus 85mm f/1.4 APO-Planar: Flare Control

2014-07-24 A conversation with Ming Thein on the Pentax 645Z and Nikon D810 and More

2014-07-06 Sigma dp2 Quattro: Lens Hood and Lens Flare

2014-07-02 Sunstars and Flare with the Canon 16-35mm f/4L IS USM

2014-06-22 Leica 50mm f/2 APO-Summicron-M ASPH: Evaluating Flare with Late 2013 Production Sample

2014-04-10 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)

2014-03-26 Leica 16-18-21mm f/4 Tri-Elmar-M ASPH: Flare Assessment

2014-03-16 Panasonic Nocticron 42.5/1.2: Flare

2014-03-03 Leica 18mm f/3.8 Super-Elmar-M ASPH: Aperture Series 'Beaver Pond Meadow'

2014-03-03 Leica 24mm f/3.8 Elmar-M ASPH: Aperture Series 'DeChambeau Ranch House

2014-03-02 Leica 24mm f/3.8 Elmar-M ASPH: Aperture Series 'DeChambeau Yellow Wagon'

2014-03-01 Leica 24mm f/3.8 Elmar-M ASPH: Aperture Series 'Glistening Rocks Waterfall'

2014-02-28 Leica 18mm f/3.8 Super-Elmar-M ASPH: Flare Behavior over Aperture Range

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)

2013

2013-11-25 Leica 75mm f/2 APO-Summicron-M ASPH: Flare Examples

2013-10-24 Leica 50mm f/0.95 Noctilux-M ASPH: Flare

2013-09-15 Leica 50mm f/2 APO-Summicron-M ASPH: Update on the Flare Issue

2013-08-15 Leica 50mm f/2 APO-Summicron-M ASPH Update on the Flare Issue

2013-08-12 Leica 50mm f/2 APO-Summicron-M ASPH: Circular Ring Flare

2013-08-04 Leica 50/2 APO-Summicron-M ASPH vs 50/0.95 Noctilux-M ASPH: Orange Bark Pine, Yosemite (Leica M240)

2013-08-04 Leica 50mm f/2 APO-Summicron-M ASPH: Will Leica Address the Flare Issue?

2013-06-25 Flare Control with Leica M Lenses and Especially the Leica 50/2 APO Summicron-M ASPH

2013-06-12 Leica 50/2 APO Summicron-M ASPH: Concentric Flare Rings Plausible Explanation

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

2013-04-22 Leica 50/2 APO Summicron-M ASPH: Flare Control

2013-02-25 Flare Assessment — Sigma 35/1.4 DG HSM A1

2012

2012-07-19 Nikon 85mm f/1.4G vs 85/1.8G Veiling and Ghosting Flare

2011

2011-12-05 Leica 21mm f/3.4 Super-Elmar-M ASPH Examples and Flare

2011-10-25 Veiling Flare With and Without a Polarizer

2009

2009-12-28 Nikon 70-200/2.8G VR II flare examples

2009-12-27 Nikon 70-200mm f/2.8G VR II — flare

2008

2008-08-22 Zeiss ZF 18mm f/3.5 Distagon First Impressions

2007

2007-10-01 Flare control

2006

2006-07-22 Infrared flare with the 85/f1.2L II USM

2006-07-20 More on infrared hot spots

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