EXCERPT page containing first few paragraphs. 2024-03-29 03:12:31
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Distortion for Zeiss ZM 35/1.4 Distagon
Distortion is a wave type commonly seen in wide angle designs: barrel distortion approaching the long edge (bowing out) then inflecting to pincushion distortion into the corners (bowing in).
The maximum distortion is tightly controlled at about 0.5%, which is impressively low for an f/1.4 design, and considerably lower than the Leica 35mm f/1.4 Summilux-M ASPH, which has triple the distortion at ~1.5% (also wave-type).
See example further below.
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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.
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- 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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