I guess the order (RGGB or GRBG etc.) are controlled by setting either the X or Y offsets to zero or 1, right? Do you know how the 4 options specify this Bayer pattern?
RGGB: X = ?, Y = ? (is this the default, 0, 0?)
GRBG: ?
BGGR: ?
GBRG:?
Looking at the Bayer Filter Pattern that DeepSkyStacker displays for the Sony A100 it looks to be RGGB, whereas for the Sony DSC-R1 it is GRBG. I think the NEX is probably aligned with the A100, since it is part of the Alpha line. But the question of which offset specifies what still remains...
Thanks!
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