EXCERPT page containing first few paragraphs. 2022-01-22 18:32:58
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The Sigma DP1 Merrill lens has significant lateral chromatic aberration which appears on high contrast edges (really everywhere). This degrades color purity and detail.
Lateral chromatic aberration should not appear in the center in a properly assembled lens, and it should appear symmetrically about the center when present.
This example show two key points:
- The lens on the Sigma DP1 Merrill used for this review is out of alignment physically, in a way that produces lateral chromatic aberration (LCA) primarily on one side of the image.
- The Sigma Photo Pro software in correcting lateral chromatic aberration (LCA) on one side of the image introduces LCA on the other side of the image, which had been all but free of it.
The correction palette
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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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