EXCERPT page containing first few paragraphs. 2022-08-19 07:21:43
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A troublesome behavior of all the Sigma Quattro cameras is the inability to shoot into direct sunlight: the images develop a green cast due to some kind of internal reflection problem, seemingly from the sensor itself, not the lens, since it applies to all the models and to the DP Merrill line as well.
See also dp2 Quattro Green Flare.
Flare example (from JPEG)
The green flare tends to kill the ability to make use of sunstars.
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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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