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Leica 50mm ƒ/2 APO-Summicron-M ASPH

50/2 AA Flare Under Field Conditions (June 2013 Sample)

June 2013 lens sample, which suffered from poor flare control.

On Leica M Type 240. No filter was used and the lens shade was fully extended.

Initial testing showed severe veiling flares issues with the 50mm f/2 APO-Summicron-M ASPH. This finding was with one lens sampe and M Typ 240 body, but additional testing with another lens sample and different body confirms exactly the same behavior.

In the field, I sought to make a variety of images as one would wish to make in any creative way (not “tests”): I was frequently stymied under appealing light conditions involving backlighting or even mostly shaded but towards-the-sun-lighting. The awkward strategy of shielding the lens even on a tripod was at best a nuisance and sometimes risky (steep terrain often has unstable footing including loose soil and boulders!). And shooting at low shutter speeds with one hand shielding the lens and one holding the camera is a contortion at best, even with a quality handgrip. Could the classic Leica “street shooting” really mean paved level smooth streets?

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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 and Leica S.

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 28 megapixels filling up to 5K display, 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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