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EXCERPT page containing first few paragraphs. 2022-01-22 18:58:46

Olympus OM-D E-M5

ISO Series from ISO 200 - ISO 25600

This ISO series offers a full range of tones that is free of “pinned” blacks. In reality, one might drop exposure by a stop or more and open up the shadows later, in order to preserve highlight detail (e.g., the window). Hence, the demands on sensor quality (image noise) can be high in such scenarios.

The series from ISO 200 through ISO 25600 is shown.

50% of actual pixels ISO series

Exposure: 1/2 sec at ISO 200 ... 1/250 sec at ISO 25600

Click the image below to see the full series at 50% of actual pixels (4 megapixels, 1/2 linear reduction), which is a reasonable proxy for a print, where some slight blurring occurs due to ink bleed.

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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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Variants 200,400,800,1600,3200,6400,12800,25600 available in full article
Test scene at f/4
1/2 sec at ISO 200 ... 1/250 sec at ISO 25600

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