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Leica M240
Leica 28mm f/1.4 Summilux-M ASPH

Aperture Series: Inner Quad, From Under the Oaks (M240)

Like the Post Office Boxes series, this series utilizes a relatively distant focus near center to deliver sharpness right away at the periphery, which is closer: focus places the zone of sharp focus to optimize the field curvature for the scene.

Surreptitious View

Adobe Camera Raw 9.1.1 (461). ACR settings. Camera Profile = Embedded.

Lighting was funky artificial stuff, so color was adjusted to taste.

Focus was at center, on the tree to the left of the global light. Since the foreground and periphery are closer to the camera, the forward field curvature is well matched to the “shape” of the layout, thus delivering good quality wide open, and very high sharpness across the field by f/4: scan across the image even at f/4, and observe that from center sharpness near the bright light, the image grows progressively less sharp to the right edge. Yet at left, the stonework is razor sharp by f/4; this is the field curvature arcing forward.

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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.

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

Aperture series 1.4,2,2.8,4,5.6,8 available in full article

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