EXCERPT page containing first few paragraphs. 2023-02-08 03:21:59
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Contrast at f/2 for coarse structures is high, falling gracefully to the corners. Contrast at f/2 for fine structures is moderate, also falling gracefully to the corners. The somewhat low contrast wide open is most likely due to uncorrected aberrations including some sphericl aberration, accounting for some focus shift.
Stopping down to f/4 raises contrast of coarse and fine structures to outstanding levels across the field, with a graceful decline from the edges to the extreme corners.
Astigmatism is very well controlled, and the close sagittal and tangential curves suggest a high level of control of lateral chromatic aberration — minimal color fringing.
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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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