EXCERPT page containing first few paragraphs. 2023-03-21 17:25:29
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MTF: 24mm f/1.4 Summilux-M ASPH
The MTF suggests a wave-type field curvature , confirmed with field shooting examples showing that the curvature arcs forward at the edges— a conflict with most landscape photography, see the examples
Performance at f/2.8 with flat (planar) subjects can be expected to be mediocre away from center; there is just too much field curvature. This is definitely not a good lens for shooting buildings and similar subjects but it might help in interiors, were an encroaching wall would thus be sharper.
At f/5.6, astigmatism on fine detail develops approaching the edges and this is hinted at in field images, depending on the type of image detail.
Mouse over the apertures below to compare.
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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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