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EXCERPT page containing first few paragraphs. 2022-08-17 22:29:45

36 megapixel Sony A7R
Sony / Zeiss FE 35mm f/2.8 ZA Sonnar

Aperture Series: Redwood Stump Long Exposure (Sony A7R)

Two models, one frustrating, one misbehaving

The light was failing, so the series ends at f/8 with a 30-second exposure, which is the maximum exposure time possible without resorting to Bulb mode and a manual release (which I did not have). The arbitrary capping of exposure time to 30 seconds shows flawed design judgment. It’s frustrating to be there and want to make a 60 second exposure, but to stymied by an arbitrary limit.

This scene was also shot with the 24-megapixel Sony A7, but the camera misfocused so badly that it was not usable even stopped down to f/8. In short, the “better” autofocus of the A7 failed to perform. It appears that both cameras focus at the leading edge of the sharp field.

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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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Aperture series 2.8, 4, 5.6, 8 available in full article

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