Interesting. The difference of the G1 and G2 channels shows the least banding of any example I\'ve seen so far in the RAW data. So maybe it is a QC issue, or some calibration that was omitted on a batch of cameras. Dunno why it would appear initially and then disappear on this camera, though.
The difference of greens does seem to indicate a different response, though, similar to but not identical to past examples:
The scale here is -500 to +500 RAW levels in the difference, and the file has been downsized by a factor of four. In most patches the response is about the same (yielding neutral gray), but in the brighter tones there is a substantial mismatch (particularly the white patches, for some reason).
Nov 11, 2009 at 04:15 PM
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