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Zeiss ZM 35/2 Biogon
Leica 35/1.4 Summilux-M ASPH FLE
(not necessarily to scale)

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Zeiss ZM 35/2 Biogon vs Leica 35/1.4 FLE (Dolls, Focus adjusted Biogon)

This comparison uses the Zeiss ZM 35mm f/2 Biogon after Zeiss factory focus adjustment. This is a service which is available by special request, and it takes 4-6 weeks for the trip to Germany and back. Specify “optimize for use with digital rangefinder camera”.

IMPORTANT: read the discussion in the pre-adjustment comparison about the focus adjustment as well as Rangefinder Focus Error With Leica M9 and Zeiss ZM Lenses.

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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, Leica SL.

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.

Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Leica.

Variants Leica 35/1.4 Summilux-M ASPH FLE, Zeiss 35/2 Biogon available in full article
Test scene at f/4

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