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Hmmm.... there is a definite crosshatch in the areas of low SNR. If your calibration frames are introducing artifacts, ditch them and capture a new set. Try 100 bias frames and see if that adds less noise to your images - should be the case. Have you investigated the colour mosaic setting for your camera - could be the problem or part thereof? Are you dithering?
The PI procedure is correct. BPS does all calibration in monochrome, so if you do manual processing, see that you type 'raw cfa' (without quotes) in Format Hints of the image calibration module. That will override any Format explorer settings. BPS does not subtract a bias pedestal and avoids manual settings when using ImageCalibration stand alone.
You can follow the updated PI DSLR_RAW workflow in the tutorials section for guidance if you wish. That way you will have correct settings.
Your bias and dark frames look OK.
Last edited by rcheshire; 24-08-2013 at 09:07 PM.
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