EXCERPT page containing first few paragraphs. 2020-07-07 18:26:01
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These examples from the Sigma FE 105mm f/1.4 DG HSM Art were shot handheld using IBIS at f/1.4 and f/2 and f/2.8. They show off the spectacular performance of the Sigma 105/1.4 starting right at full aperture and also discuss certain subtleties needed to obtain that sharpness.
Includes images up to full camera resolution.
Mt Whitney sunrise @ f/2.2
Since the lens shows itself to be razor sharp edge to edge in other images, what’s going on here with a slightly soft Mt Whitney appears to be a front-focus issue from the Sony A7R IV autofocus. I should have gone to full Live View magnification and focused directly on Mt Whitney instead.
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Diglloyd Guide to Mirrorless is by yearly subscription. Subscribe now for about 25 cents a day ($90/year).
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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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