EXCERPT page containing first few paragraphs. 2022-01-23 10:45:52
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This 3-frame focus stack compares with a single frame at f/11. The difference in total sharpness is remarkable, especially since f/11 at 24mm might be expected to have good depth of field. As the single frame shows, no single frame is up to the job for an image like this.
Focus stacking helps overcome three issues:
The Sony 12-24mm f/4 G used for this stack has a symmetry issue, with the right side generally unsharp with its focus thrown to the distance (including “beyond infinity” if focused to the far distance). Such asymmetries are very common, and many Sony lenses that I have tested have shown them—frustrating.
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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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