EXCERPT page containing first few paragraphs. 2021-12-03 01:56:59
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The MTF charts are computed fantasy MTF, which means that a real lens is not tested. Rather, a computer simulation is used to compute the MTF that would be expected from a lens built to perfection. Also, the f/8 graph does not take diffraction into account
Still, the MTF looks promising at f/1.4 and claims to easily outperform a Leica Summilux 50/1.4.
MTF as shown for f/8 has characteristics that suggest lens behavior will need field evaluation. In particular, focus shift behavior is highly relevant in real world usage.
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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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