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60MP Sony A7R IV
Sigma 105mm f/1.4 DG HSM Art

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Examples at Wide Apertures: Deer at Dawn

These examples from the Sigma FE 105mm f/1.4 DG HSM Art were shot handheld using IBIS at full aperture or close to it. Often it is better to use f/1.8 or f/2 for more even illumination across the frame and a pop in micro contrast, so most shots are at f/1.8.

I’ve included several similar images because the foreground and background bokeh rendition is a little different for each image.

I was disappointed in the ability of the Sony A7R IV to focus on the deer, but I forgot to use animal Eye AF. After all, they did wake me up at 5:30 AM or so. The lens tends to seek and fail too often, and I have observed this before. Maybe non-Sony lenses have issues? Ultimately I was forced to go into magnified Live View and focus there—not an efficient process, but it does also eliminate the tendency of the camera to find bushes and similar instead of the eyes and is deadly accurate.

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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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f1.8 @ 1/100 sec handheld IBIS=on EFC shutter, ISO 200; 2020-05-06 05:48:32
Sony A7R IV + Sigma FE 105mm f/1.4 DG HSM Art
ENV: Mt Whitney foothills, altitude 6250 ft / 1905 m, 58°F / 14°C
RAW: Enhance Details, LACA corrected

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