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EXCERPT page containing first few paragraphs. 2022-08-19 08:15:42

60MP Sony A7R IV
Sigma 14-24mm f/2.8 DG DN Art

Examples: White Mountains (Sony A7R IV)

These examples with the Sigma 14-24mm f/2.8 DG DN Art taken in the White Mountains on the 60-megapixel Sony A7R IV. Some are focus stacked images showing off the incredible detail possible on 60MP.

Includes images up to full camera resolution.

Pre-Dawn Glow, Patriarch Grove

A very strong wind and 10-second exposure made this 2-frame stack tricky, but aside from excessive noise from the Sony A7R IV, it worked out great. The lighting as so gorgeous! I shield the camera and tripod with my entire body as well as I can, getting within an inch or two of the camera so as to reduce turbulence. Usually this works well.

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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.

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  • Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.

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Pre-Dawn Glow, Patriarch Grove
f8 @ 10.0 sec electronic shutter focus stack 2 frames, ISO 100; 2019-10-25 06:39:48
Sony A7R IV + Sigma FE 14-24mm f/2.8 DG DN Art @ 18mm equiv (18.2mm)
ENV: Patriarch Grove, altitude 11300 ft / 3444 m, 32°F / 0°C
RAW: LACA corrected, vignetting corrected, TopazSharpenAI {RemoveBlur=0.29 SuppressNoise=0.17 AddGrain=0}

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