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EXCERPT page containing first few paragraphs. 2019-09-18 13:40:57
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Sony A7R III
Sigma FE 14mm f/1.8 DG HSM Art

Aperture Series: Lingering Snow near Upper Conness Lake

See also the review of the Sigma 14mm f/1.8 DG HSM Art for Canon/Nikon in diglloyd Advanced DSLR.

Sometimes it takes just the right scene to make plain the actual lens behavior, which can be difficult to analyze on many scenes due to the choice of focus versus 3D structure of the scene versus optical behavior.

This scene extends the field curvature analysis in Hiker at Upper Conness Lake. It proves to be a remarkable demonstration of both field curvature and mid-zone focus shift which should persuade anyone of the near-irrelevance of “quick tests” or lab tests which purport to show lens performance in real world shooting.

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Diglloyd Guide to Mirrorless is by yearly subscription. Subscribe now for about 25 cents a day ($90/year).
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!

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.

Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Sony.

Aperture series 1.8,2.8,4.5,6.3,9,11 available in full article

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