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EXCERPT page containing first few paragraphs. 2021-10-21 01:35:16

Sony A7R IV
Sony FE 200-600mm f/5.6-6.3 G OSS

Examples: White Mountains, Far Distance

This page looks at far distance imagery under typical mountain conditions. Many of the images have a pair of apertures—wide open and stopped down.

The findings here show just how difficult it is to make sharp images with a super-tele with commonplace atmospheric conditions, that is, atmospheric distortion that smears image details like finger painting smearing.

Includes images up to full camera resolution.

White Mountain Peak @ 200mm

At 200mm, image quality is slightly degraded by atmospheric distortion in these images. F/8 delivers notably sharper results in the outer zones.

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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.

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

Aperture series 5.6,8 available in full article
f5.6 @ 1/800 sec EFC shutter, ISO 100; 2021-06-03 10:07:42
Sony A7R IV + Sony FE 200-600mm f/5.6-6.3 G OSS @ 200mm
ENV: White Mountains, altitude 11800 ft / 3597 m, 60°F / 15°C
RAW: LACA corrected, vignetting corrected, +40 Whites, +20 Dehaze, +15 Clarity

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