EXCERPT page containing first few paragraphs. 2022-01-23 00:42:14
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This finely detailed scene at far focus distance at 35mm is an exceptionally demanding subject that makes mincemeat of most lenses, mercilessly revealing every weakness, lack of symmetry, etc.
Most lenses require f/5.6 or f/8 to sharpen the whole mosaic. Often, the mid zones are weak, or the edges, or there is asymmetrical performance; for a lens to have both symmetrical performance as well as a flat field (minimal field curvature) is a serious challenge, thus making a sharp image very difficult on this subject. It is a particular challenge for zoom lenses, which invariably will have some field curvature, often in the mid zones.
Adobe Camera Raw 9.5 (585). View ACR Settings. Camera Profile = Adobe Standard. Chromatic aberration is corrected via an embedded profile, enforced by ACR. Aperture f/11 sharpened to counteract diffraction.
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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.
- Make better images by learning how to get the best results right away. For example, the best way to set up your Sony camera.
- Save money by choosing the right lens for your needs the first time, particularly with the numerous lenses available for Sony.
- Make better images, a sort of “cheat sheet” saving yourself months or years of ad-hoc learning—best practices and how-to and 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.
- 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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