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60MP Sony A7R IV
Sony FE 12-24mm f/4 G

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Examples: Twenty Lakes Basin (Sony A7R IV)

This page shows a variety of examples, some single frames and some focus stacked with theSony FE 12-24mm f/4 G.

The sample of the 12-24mm f/4G used here has a consistently weak right side, just like the sample I tested two years ago (on the Sony A7R II)! Quality control at Sony seems to be very loose, as so many Sony lenses are problematic.

2019-11-06: in progress.

Greenstone Lake shoreline with view to Mt Conness

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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.

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

Upper Morgan Lake
f7.1 @ 1/125 sec electronic shutter focus stack 3 frames, ISO 100; 2019-11-05 10:18:14
Sony A7R IV + Sony FE 12-24mm f/4 G @ 12mm
ENV: Greenstone Lake, altitude 10250 ft / 3124 m, 60°F / 15°C
RAW: LACA corrected, vignetting corrected, pull 0.3 stops, +79 Shadows, -100 Highlights, +40 Whites, +20 Contrast

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