EXCERPT page containing first few paragraphs. 2023-12-06 15:29:36
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Shot on the 24-megapixel Leica M Typ 240.
Three 21mm lenses are compared here for this interior shot. The 2-stops-faster contender against the Leica 21mm f/3.4 Super-Elmar-M ASPH is the Voigtlander Ultra 21mm f/1.8. Given the speed differential, a reasonable way to consider the Voigtlander 21/1.8 is to ask how well it does at f/4 onwards as compared to the Leica 21/3.4 SEM, looking at the wider apertures as bonus apertures that extend its versatility.
Because the walls and ceiling and floor approach the camera, a lens with peripheral forward field curvature is at an advantage (the Voigtlander 21/1.28). A lens with a flat field (Leica 21/3.4 SEM) is at a disadvantage, since its zone of sharpness will be somewhere behind the leading walls. The 3rd lens, the Voigtlander 21mm f/4, is a marginal performer determined with other field shot, but it is shown for perspective.
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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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