EXCERPT page containing first few paragraphs. 2019-02-23 22:11:12
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A specially modified 42-megapixel Sony A7R II (conversion by KolariVision) is compared to the 24-megapixel Leica M Typ 240 using Leica’s best M lens, the Leica 50mm f/2 APO-Summicron-M ASPH in order to explore the resolution gains on the 42-megapixel sensor of the modified A7R II (“Kolarivision mod”).
The A7R II sensor has 75% more pixels, but pixels should not be confused with resolution. The difference in resolving power is 5976 vs 7952 = 1.3X. And that is the best case, assuming the lens is perfect. Resolution gains should be visible but not dramatic, and such gains also demand optimal focus and execution.
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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.
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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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