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Sigma SD1 Merrill

Sigma/Foveon true-color sensor in a DSLR body..

Canon EOS 5DS / 5DS R

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

Canon TS-E 45mm f/2.8

Normal lens with tilt/shift.

Nikon 19mm f/4E ED PC-E

Ultra wide tilt/shift lens.

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 FA 15-30mm f/2.8 ED SDM WR

Full frame ultra wide angle zoom..

Canon 24mm f/2.8 IS USM

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

Sigma 14mm f/1.8 DG HSM Art

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

Sigma 35mm f/1.4 DG HSM Art

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

Sigma Telephoto APO Macro Lenses: 150mm, 180mm

Sigma’s fast telephoto APO macro lenses..

Schneider PC-TS Perspective Control Tilt/Shift Lenses

Tilt/Shift by Schneider for Canon and Nikon and other brands..

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

Wide angle tilt/shift lens at 28mm..

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!.

Nikon AF-S Nikkor 20mm f/1.8G

Nikon’s fast ultra wide angle..

Nikon AF-S Nikkor 24mm f/1.8G

Versatile autofocus wide angle..

Canon 11-24mm f/4L USM

Extreme wide angle zoom..

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

Canon’s premium mid-range zooms..

Nikon AF-S 28mm f/1.8G

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

Samyang 14mm f/2.8

Ultra wide angle lens for Canon and Nikon..

Milvus 15mm f/2.8

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

Milvus 35mm f/2

Classic design in the latest Milvus build..

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..

25mm f/2 Distagon

Ultra high performance with a fast aperture..

28mm f/2 Distagon

An artist’s drawing tool..

35mm f/1.4 Distagon

Strokes of a master..

35mm f/2 Distagon

Balance and poise..

135mm f/2 APO-Sonnar

Beautiful bokeh, razor sharp, superb color correction..

Software issues.

[ARCHIVE] Software and related for photographers..

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

Bread and butter all-around zoom..

Canon RF 28-70mm f/2L USM

Bread and butter all-around zoom..

Sony Alpha A7R

Full frame compact mirrorless with interchangeable lenses..

Sony FE 24mm f/1.4 GM

High performance wide angle..

Sony FE 28mm f/2

Fast wide angle..

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

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

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

Comapact mid-range zoom for Sony full frame mirrorless.

Sony DSC-RX100

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

Olympus OM-D E-M5

Superb ergonomic design in a compact camera..

Zeiss 24mm f/1.8 for Sony NEX

Moderate wide angle for Sony NEX..

Metabones SpeedBooster for Sony NEX

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

Sigma Photo Pro Software 5.x

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

Sigma dp0 Quattro

21mm f/5.6 equivalent FOV lens..

Sigma DP2 Merrill

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


Blog posts, reverse chronological

2018

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

2016

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

2015

2015-08-08 Sony A7R II with Leica M Lenses

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

2014

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

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

2012

2012-10-30 Canon 24-70mm f/2.8L II: Bokeh and Correcting Color Fringing

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

2012-09-04 Canon 24mm f/2.8 IS: Field Curvature and Color Fringing Study

2011

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

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

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

2007

2007-04-05 Followup on Canon EF 16-35mm f/2.8L II color fringing

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