EXCERPT page containing first few paragraphs. 2021-12-02 17:04:35
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At base ISO 200 with an absolutely perfect ETTR exposure, the EM1 sensor shows the limits of its sensor size (tiny photosites with limited S/N quality): there is frequently a tight grain to the images (noise).
This page shows several examples of the noise behavior at base ISO and under ideal exposure; it doesn’t get better than that in favor of the camera. But in the real world, exposure is often a stop low or more (particularly with auto exposure), a higher ISO might be used too, and hence the noise issues become even more relevant.
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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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