EXCERPT page containing first few paragraphs. 2022-05-17 09:47:42
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This page evaluates performance of the Leica 28mm f/2 Summicron-M ASPH on the 47-megaixel Panasonic S1R from f/2.8 through f/8*. Aperture f/2.8 looks bad enough as it is so f/2 is not included and focusing difficulties with the S1R* rendered it dubious.
* The Panasonic S1R ultra high-res EVF is terrific but the Panasonic S1R magnified Live View implementation is fatally flawed when attempting precise focus, leading to focusing errors. Focus at f/2 was off too much; focus at f/2.8 was OK and at f/4 was perfect, due to rearward focus shift.
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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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