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Leica 50mm ƒ/2 APO-Summicron-M ASPH

Aperture Series: Water Bottles on Shelf (M240)

June 2013 50/2 APO, which suffered from poor flare control.

Shot using the 24-megapixel Leica M Typ 240.

This simple still-life shows a hallmark of the 50/2 APO ASPH: a remarkable high contrast clarity. This clarity is due to three things: (1) a high level of color correction, (2) very high micro contrast and (3) a very low level of other optical aberrations. The image really “pops”.

Water bottles on shelf

Observe that the magenta/green secondary longitudinal chromatic aberration seen on the background bottle cleans up nicely at ƒ/4, but it is ƒ/5.6 that delivers an image that looks fully neutral.

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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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Aperture series 2, 2.8, 4, 5.6, 8, 11, 16 available in full article

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