EXCERPT page containing first few paragraphs. 2023-02-03 05:12:19
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Performance is very high for a 21mm lens, with center contrast showing exceptional values that declines gracefully to the corners.
The edges and corners at f/5.6 show some astigmatism, so we can expect that detail here might be of somewhat lower crispness, depending on the subject matter. This seems to be the case with some field shots., and it might also depend on distance.
Compare to the Leica 21mm f/3.4 Super-Elmar-M ASPH at f/5.6.
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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.
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- 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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