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Leica 21mm f/3.4 Super-Elmar-M ASPH

Aperture Series: Barcroft Green Machine (M240)

Along with the 18mm f/3.8 Super-Elmar-M ASPH, the Leica 21mm f/3.4 Super-Elmar-M ASPH covers the ultra-wide-angle range in a rewarding way. The two lenses exhibit similar behavior, including superb control of flare, but the 21/3.4 SEM controls color fringing better.

This scene takes a look at sharpness across the frame on a 3D subject: exactly where is the 21/3.4 weak, if it is weak? Past experience suggests that the edge areas decline.

Barcroft Green Machine

ACR: these settings with Camera Profile = Embedded.

Contrast control used here to tame the bright bricks and shadowed areas of the machine; the sensor was maxed-out with just a trace of highlight loss in the very bright specular areas.

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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 3.4, 4, 5.6, 8, 11, 16 available in full article

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