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Nikon 85mm f/2.8D PC-E Micro-Nikkor

Medium telephoto tilt/shift macro focusing lens.

  1. MTF

Sigma 20mm f/1.4 DG HSM Art

The fastest extreme wide angle yet..

Sigma 24mm f/1.4 DG HSM Art

Sigma’s fast high performance 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 135mm f/1.8 DG HSM Art

Fastest 135mm lens yet, with ultra high 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 50mm f/1.8G

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

Nikon AF-S Nikkor 58mm f/1.4G

Nikon’s High performance normal lens.

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..

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

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

  1. MTF

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 35mm f/1.8G

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

Nikon AF-S 85mm f/1.4G

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

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

Compact and lightweight travel-friendly telephoto..

Hartblei 40/80/120mm SuperRotators

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

Canon RF 35mm f/1.8 Macro STM

All-arounder compact lens with macro capability..

Canon RF 50mm f/1.2L USM

High speed normal lens optimized for Canon mirrorless..

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..

Nikon NIKKOR Z 35mm f/1.8 S

Moderate wide angle expressly designed for Nikon Z cameras..

Nikon NIKKOR Z 50mm f/1.8 S

Normal lens expressly designed for Nikon Z cameras..

Nikon NIKKOR Z 24-70mm f/4 S

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

Sony Alpha A7R

Full frame compact mirrorless with interchangeable lenses..

Sony Planar T* FE 50mm f/1.4 ZA

Fast high performance normal lens of Zeiss design..

Sony FE 35mm f/2.8 ZA Sonnar

Compact moderate wide angle for Sony mirrorless..

Sony FE 55mm f/1.8 ZA Sonnar

Compact normal lens for full-frame Sony mirrorless..

Sony FE 85mm f/1.4 GM

Top-grade medium telephoto..

  1. MTF

Sony FE 24-105mm f/4 G OSS

Wide angle to telephoto zoom with optical stabilization..

Fujifilm Finepix X100

The best compact big-sensor digital camera yet?.

Ricoh GR

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

Zeiss Loxia 21mm f/2.8 Distagon

Outstanding ultra wide angle performer..

Zeiss Loxia 25mm f/2.4 Distagon

Outstanding wide angle, superb 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 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 Batis 85mm f/1.8 Sonnar

Autofocus portrait lens for Sony full-frame mirrorless..

Zeiss Batis 135mm f/2.8 APO-Sonnar

Apochromatic pin-sharp medium telephoto 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..

Zeiss Touit 50mm f/2.8M

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

Sigma dp2 Quattro

45mm f/2.8 equivalent FOV lens..

Milvus 15mm f/2.8

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

Milvus 18mm f/2.8

An outstanding 18mm design..

Milvus 21mm f/2.8

The classic 21/2.8 Distagon improved..

Milvus 25mm f/1.4

Highest performing 25mm from Zeiss ever..

Milvus 35mm f/1.4

Highest performing 35mm from Zeiss ever..

Milvus 35mm f/2

Classic design in the latest Milvus build..

Milvus 50mm f/1.4

Outstanding build and optical quality in a normal lens..

Milvus 50mm f/2M

The classic 50/2 Makro-Planar improved..

Milvus 85mm f/1.4

Outstanding build and optical quality in a medium tele..

Milvus 100mm f/2M

The classic 100/2 Makro-Planar improved..

Milvus 135mm f/2

On 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..

Optical Performance

Sharpness and rendering..

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/1.4 Distagon

Strokes of a master..

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 85mm f/1.4 APO-Planar

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

85mm f/1.4 Planar

True-to-life imagery..

100mm f/2 Makro-Planar

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

135mm f/2 APO-Sonnar

Beautiful bokeh, razor sharp, superb color correction..

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/2.8 Elmarit-M ASPH

A discontinued but excellent 24mm..

Leica 24mm f/3.8 Elmar-M ASPH

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

Leica 28mm f/1.4 Summilux-M ASPH

Leica’s fast 28mm..

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

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

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

Tweaked 2016 redesign..

  1. MTF

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

Tweaked 2016 redesign of Leica’s petite performer..

  1. MTF

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 35mm f/2 Summicron-M ASPH

Leica’s f/2 35mm for the M..

Leica 35mm f/2.5 Summarit-M

Leica’s Budget 35mm lens..

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 Summicron-M

Leica’s compact low-distortion normal lens..

Leica 50mm f/2.5 Summarit-M

Leica’s Budget 50mm lens..

Leica 75mm f/1.25 Noctilux-M ASPH

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

  1. MTF

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 APO-Summicron-M ASPH

Leica’s longer tele for Leica M..

Leica 90mm f/2.2 Thambar-M

Leica’s retro telephoto..

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

Leica’s compact 90mm for the M..

Leica 90mm f/4 Macro-Elmar-M

Diminutive telephoto and macro lens..

  1. MTF

Leica 135mm f/3.4 APO-Telyt-M

Leica’s longest M lens..

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

Compact lens for portraiture or similar..

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

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

Leica 180mm f/2.8 APO-Elmarit-R

World’s best mid-range telephoto lens..

Leica 280mm f/4 APO-Telyt-R

Compact and ultra high performance long telephoto..

Zeiss ZM 15mm f/2.8 Distagon

Notes and examples..

Zeiss ZM 18mm f/4 Distagon

Compact high performance, ultra low distortion..

Zeiss ZM 21mm f/2.8 Biogon

Moderate speed high contrast ultra-wide..

Zeiss ZM 21mm f/4.5 C-Biogon

Zero distortion ultra-wide..

Zeiss ZM 25mm f/2.8 Biogon

Compact wide angle with brilliant contrast..

Zeiss ZM 28mm f/2.8 C-Biogon

Compact wide angle..

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 35mm f/2.8 C-Biogon

Ultra compact high performance moderate wide angle rangefinder lens..

Zeiss ZM 50mm f/2 Planar

Pleasing and relatively inexpensive normal lens.

Zeiss ZM 85mm f/2 Sonnar

Ultra high performance (discontinued).

Zeiss ZM 85mm f/4 Tele-Tessar

Compact high performance medium telephoto..


Blog posts, reverse chronological

2018

2018-09-07 Canon RF 24-105mm f/4 IS vs Nikon NIKKOR Z 24-70mm f/4 S: What Does the MTF Chart Tell Us?

2018-09-07 MTF Services Unveils the First Lens Adapters for Nikon Z-Mount

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

2017

2017-12-04 New Article on Zeiss Lenspire Site: “Getting started with Focus Stacking – How to achieve more detailed images”

2017-11-07 Zeiss Milvus 25mm f/1.4: Optical Construction and Siemens Star MTF Analysis

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

2017-10-05 Zeiss Milvus 35mm f/1.4: Full MTF Series from f/1.4 through f/16

2017-08-29 New Article on Zeiss Lenspire Site: “Micro Contrast and the Zeiss 'Pop'”

2017-02-25 Fujifilm GFX 50s: Shooting with Different Aspect Ratios

2017-02-25 MTF for Fujifilm GFX GF Lenses

2016

2016-12-08 Zeiss Loxia 85mm f/2.4 MTF Series from f/2.4 to f/16

2016-12-08 Zeiss Milvus 18mm f/2.8: Full MTF Series from f/2.8 through f/16

2016-11-10 Sigma 85mm f/1.4 DG HSM Art Arriving Friday for Testing

2016-11-07 MTF for the Sigma 85mm f/1.4 DG HSM Art

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

2016-02-04 Sony Diffraction-Free Computed Fantasy MTF

2016-01-29 Leica Data Sheet for MTF of Leica 28mm f/2 Summicron-M ASPH Error

2015

2015-10-14 Zeiss Otus 28mm f/1.4 APO-Distagon MTF

2015-09-11 Complete MTF for Zeiss Milvus 50mm f/1.4 and Zeiss Milvus 85mm f/1.4 MTF

2015-09-11 Understanding the new Zeiss Milvus Lineup

2015-07-30 Leica 100mm f/2 Summicron-S ASPH: MTF Analysis

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

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

2015-03-27 Sigma 24mm f/1.4 DG HSM Art, MTF

2014

2014-10-08 Zeiss Otus 85mm f/1.4 APO-Planar: Full MTF Series from f/1.4 - f/16

2014-09-16 Zeiss ZM 35mm f/1.4 Distagon for Leica M: Best 35mm M Lens Yet?

2014-09-03 Zeiss Loxia MTF Discussion

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

2014-01-22 Sigma 50mm f/1.4 DG HSM 'Art' (for Canon, Nikon, etc)

2014-01-13 Mitigating A7R Micro Contrast Diffraction Losses with Sharpening

2013

2013-10-08 MTF of Zeiss Otus 55mm f/1.4 APO-Distagon Wide Open

2013-08-03 Leica 35mm f/1.4 Summilux-M ASPH: Field Curvature and Focus Shift on a Planar Subject

2013-08-01 Field Curvature of the Zeiss 15mm f/2.8 Distagon with Focus Bracketing

2013-07-26 Making Sharp Images new page: Flange to Sensor Alignment, Fantasy Land MTF

2013-07-25 MTF vs Field Curvature and Tips for Optimizing Focus

2013-07-18 Ricoh GR: Lens Quality and MTF

2013-05-19 Zeiss Touit 32mm f/1.8 Planar: Evening on the High Line in NYC

2013-05-18 Zeiss Touit 12mm f/2.8 Distagon: Examples, Evening Architecture

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)

2013-04-26 Zeiss 15mm f/2.8 Distagon: Field Curvature, MTF, Focus (Mosaic)

2013-04-15 Zeiss ZE 135mm f/2 APO-Sonnar IN STOCK for Canon

2013-03-19 MTF at f/22 with the Zeiss 135mm f/2 APO-Sonnar

2013-02-08 When Will We See Canon Megapixels to Match Nikon?

2013-01-15 Zeiss 15mm f/2.8 Distagon: Field Curvature, MTF, Focus (Mosaic)

2012

2012-11-26 Sigma 35mm f/1.4 DG HSM: Quality Control Steps Up (“A1 MTF”)

2012-11-13 Zeiss 135mm f/2 APO Sonnar for Nikon and Canon — Not Far off Now

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

2011

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

2010

2010-03-10 Lens rental perspective on lens quality aka MTF WTF

2010-02-12 MTF comments updated for Zeiss ZF / Zeiss ZE

2009

2009-04-08 Zeiss’ Dr. Nasse on MTF, part II

2008

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

2008-01-21 Zeiss white paper on MTF

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