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EXCERPT page containing first few paragraphs. 2023-02-08 01:58:44

Leica 24mm f/3.8 Elmar-M ASPH

MTF: 24mm f/3.8 Elmar-M ASPH

MTF of the Leica 24mm f/3.8 Elmar-M ASPH is outstanding even wide open, but this is a computed (not measured value) fantasy MTF value that is neither a real measurement rom a real lens, but worse, does not take into account the sensor cover glass of a digital camera. So the chart is at best misleading for a real camera, particularly the 40MP Leica M10-R. Edge performance in real images is notably inferior to what the MTF chart claims.

Stopping down to f/5.6 produces results that are better than either of its two slower siblings. This lens shows only very mild field curvature*, and thus should be preferred for any planar (flat) subject matter. See the comparison against the Leica 24/2.8 Elmarit-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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Aperture series 3.8, 5.6, 8 available in full article

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