EXCERPT page containing first few paragraphs. 2021-12-08 17:20:13
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This page looks at the performance of the Zeiss ZM 35mm f/1.4 Distagon on the Nikon Z7 from f/1.4 through f/11, sharpness and field curvature in particular. This scene is particularly instructive in showing the excellent sharpness of the Zeiss ZM 35mm f/1.4 Distagon wide open at f/1.4, but in a strongly curved field greatly exaggerated by the too-thick sensor cover glass.
The Zeiss ZM 35/1.4 Distagon delivers sharpness edge to edge on the 24-megapixel Leica M240 with its 0.8mm sensor cover glass. However, when adapting it to mirrorless cameras like the Nikon Z7, optical performance can be degraded considerably as shown in MTF on Mirrorless Cameras. The Nikon Z7 offers somewhat thinner sensor cover glass than Sony mirrorless, so the Zeiss ZM 35/1.4 might be expected to be somewhat less degraded, but the sensor cover glass still exerts a strong influence.
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Diglloyd Guide to LEICA contains in-depth coverage of Leica M system cameras and lenses, with additional coverage of Leica M Monochrom, Leica Q.
Special emphasis is placed on Leica M lenses and certain Zeiss ZM lenses.
- Make better images by learning how to get the best results right away.
- Save money by choosing the right lens for your needs the first time, particularly the Summilux/Summicron/Elmarit choice and/or Zeiss ZM.
- Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning. Processing parameters are discussed and shown.
- Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to full camera resolution, plus large crops [past 2 years or so].
- Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.
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