EXCERPT page containing first few paragraphs. 2023-02-08 02:55:32
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Barrel distortion proceeds over the central 2/3 of the frame, reversing to accelerating pincushion distortion beyond that.
This level of distortion is noticeable on buildings and straight horizons, in spite of Leica’s assertions about it being “negligible”, which is a comment relative to the difficulties of making a 21mm lens.
Distortion is in line with most other 21mm lenses, and not much different from the 24mm f/1.4 Summilux-M ASPH.
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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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