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2024-02-15 Nikkor Z MC 105mm f/2.8 S VR Macro: Distortion and Distortion Correction

2023-11-07 Sony FE 16-35mm f/2.8 GM II: Distortion Corrected vs Uncorrected at 16mm, 24mm, 35mm

2023-09-29 Fujifilm GF 55mm f/1.7: Distortion and Distortion Correction

2023-05-28 Nikon Continues to Make Misleading Claims about Optical Distortion In Its Lenses

2023-05-24 New! Leica Q3 with the Same Extreme-Barrel-Distortion Lens

2023-04-11 Zeiss Loxia 21mm f/2.8 Distagon: Distortion Corrected vs Uncorrected

2023-04-11 Sony FE 20mm f/1.8 G: Distortion Corrected vs Uncorrected

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: Assessing Distortion at 20mm, 24mm, 35mm, 50mm, 65mm

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

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

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

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

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

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

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

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

2021-03-29 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

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

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

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

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

How to Test A Lens

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

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

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

Panasonic Lumix S PRO 50mm f/1.4

Premium fast normal lens for L-Mount..

Panasonic Lumix S PRO 70-200mm f/4 OIS

Image stabilized classic 70-200mm for L-Mount..

Leica SL Typ 601

24-Megapixel vs mirrorless..

Leica 14-24mm f/2.8 Super-Vario-Elmarit-SL ASPH

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

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

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

Leica 21mm f/2 Super-APO-Summicron-SL ASPH

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

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

All-arounder zoom with dubious optical compromises..

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

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

Leica 35mm f/2 Summicron-SL ASPH

Non-APO normal lens..

Leica 50mm f/1.4 Summilux-SL ASPH

Fast apochromatic prime lens for L-Mount cameras..

Leica 50mm f/2 Summicron-SL ASPH

Non-APO normal lens..

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..

Sigma 135mm f/1.8 DG HSM Art

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

Nikon AF-S Nikkor 58mm f/1.4G

Nikon’s High performance normal lens.

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..

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..

Fujifilm GFX100 II

Updated everything-better after 5 years..

Fujifilm GF 20-35mm f/4 R WR

Compact wide angle.

Fujifilm GF 23mm f/4 R WR

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

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

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

Fujifilm GF 35-70mm f/4.5-5.6

Compact wide angle.

Fujifilm GF 45mm f/2.8 R WR

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

Fujifilm GF 50mm f/3.5 R LM WR

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

Fujifilm GF 63mm f/2.8 R WR

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

Fujifilm GF 80mm f/1.7 R WR

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

Hasselblad XCD 35-75mm f3.5-4.5

Normal lens equivqlent to 53mm..

Hasselblad XCD 65mm f/2.8

Normal lens equivqlent to 53mm..

Hasselblad XCD 80mm f/1.9

Moderate telephoto..

Hasselblad XCD 135mm f/2.8

Moderate telephoto..

Hasselblad H4D 50 Megapixel Medium Format DSLR

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

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

Compact ultra-wide zoom..

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

Fast ultra wide zoom lens..

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

Fast standard zoom lens..

Nikon Z8

Setup, IBIS performance, focusing..

Nikon NIKKOR Z 20mm f/1.8 S

Fast ultra wide angle for Nikon Z..

Nikon NIKKOR Z 24mm f/1.8 S

Fast wide angle for Nikon Z..

Nikon NIKKOR Z 14-30mm f/4 S

Ultra wide compact zoom for Nikon Z cameras..

Nikon NIKKOR Z 24-70mm f/2.8 S

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

Nikon NIKKOR Z 24-70mm f/4 S

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

Nikon NIKKOR Z 26mm f/2.8

Ultra-wide zoom lens..

Nikon NIKKOR Z 28mm f/2.8

Ultra-wide zoom lens..

Nikon NIKKOR Z 50mm f/1.8 S

Normal lens expressly designed for Nikon Z cameras..

Sony FE 20mm f/1.8 G

Compact ultra-wide angle lens..

Sony FE 24mm f/1.4 GM

High performance wide angle..

Sony FE 24mm f/2.8 G

High performance, high speed..

Sony FE 28mm f/2

Fast wide angle..

Sony FE 35mm f/1.4 GM

High performance mild wide-angle..

Sony FE 50mm f/1.2 GM

High performance, high speed..

Sigma FE 14mm f/1.4 DG DN Art

Super-fast ultra-wide astrophotography lens..

Sigma FE 35mm f/1.2 DG DN Art

Ultra high speed native-mount moderate wide angle..

Sigma FE 35mm f/2 DG DN Contemporary

Compact native-mount wide angle..

Sigma FE 85mm f/1.4 DG DN Art

Ultra high performance medium telephoto..

Sigma FE 105mm f/1.4 DG HSM Art

Highly corrected medium telephoto..

Voigtlander FE 50mm f/2 APO-Lanthar Aspherical

High-grade manual focus normal lens..

Sony FE 12-24mm f/2.8 GM

Fast extreme wide angle zoom..

Sony FE 12-24mm f/4 G

Extreme wide angle zoom..

Sony FE 16-35mm f/2.8 GM II

Pro-grade f/2.8 wide angle zoom, updated..

Sony FE 20-70mm f/4 G

Wide range zoom aimed at bloggers..

Sony FE 24-70mm f/2.8 GM II

Premiere mid-range zoom for Sony full frame mirrorless.

Sony FE 24-105mm f/4 G OSS

Wide angle to telephoto zoom with optical stabilization..

Sony Cybershot DSC-RX1 / RX1R

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

Sony DSC-RX100

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

Fujifilm X-Pro2

Fujifilm's 24MP APS-C offering..

Zeiss Batis 18mm f/2.8 Distagon

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

Zeiss Batis 25mm f/2 Distagon

Autofocus wide angle 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..



Blog posts, reverse chronological

2024

2024-02-15 Nikkor Z MC 105mm f/2.8 S VR Macro: Distortion and Distortion Correction

2023

2023-11-07 Sony FE 16-35mm f/2.8 GM II: Distortion Corrected vs Uncorrected at 16mm, 24mm, 35mm

2023-09-29 Fujifilm GF 55mm f/1.7: Distortion and Distortion Correction

2023-05-28 Nikon Continues to Make Misleading Claims about Optical Distortion In Its Lenses

2023-05-24 New! Leica Q3 with the Same Extreme-Barrel-Distortion Lens

2023-04-11 Zeiss Loxia 21mm f/2.8 Distagon: Distortion Corrected vs Uncorrected

2023-04-11 Sony FE 20mm f/1.8 G: Distortion Corrected vs Uncorrected

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: Assessing Distortion at 20mm, 24mm, 35mm, 50mm, 65mm

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

2022

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

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

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

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

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

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

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

2021-03-29 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

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

2020

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

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

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

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

2019

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

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

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

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

2018

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

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

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

2016

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

2013

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

2012

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

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

2012-04-25 RAW vs JPEG on the Fuji X-Pro1 from f/1.4 through f/16

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