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EXCERPT page containing first few paragraphs. 2023-03-21 17:58:20

Leica 21/1.4 Summilux-M ASPH

Leica 21/3.4 Super-Elmar-M ASPH

Comparison: Leica 21/1.4 vs Leica 21/3.4 (Ashford Mill)

How does the super-speed Leica 21/1.4 Summilux-M ASPH compare to the superlative Leica 21/3.4 Super-Elmar-M ASPH?

Please see the general discussion on the Leadville building interior page of the implications of building an ultra high speed super wide angle lens (the 21/1.4).


Shown below is the test scene shot on the 18-megapixel M9P. The scene was chosen for its near/far subject matter arranged with both closeup and distance material at the edges/corners, as well as the fine detail on the water tank and bush.

The lighting was changing rapidly here (at dusk), with the 21/1.4 given +1/3 stop more exposure in processing. But for our purposes here, the difference has no material effect on sharpness.

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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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