EXCERPT page containing first few paragraphs. 2019-02-17 11:01:50
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This series is at infinity focus, focused once for all apertures. Autofocus was used, and there can be no guarantee that focus was perfectly accurate, but it is difficult to be any more precise with manual focus (in my experience), so this result has to hold anyway, as what one would experience in real world usage.
A modest amount of contrast was added (Photoshop Levels).
At f/2, the Zuiko 75/1.8 disappoints, with low contrast and clear limits to image detail. While the central 1/2 area of the frame is decent, outside that area definition declines, with the edges and corners showing only modest levels of detail. Micro contrast and sharpness at f/1.8 - f/2 are well below the levels seen at f/2.8 - f/4.
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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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