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Thanks Chris. I hope it's not the compression, else, all is lost. A bit of trickery in this case. Bilinear deBayering, which may not be as accurate as other methods, avoids colour artefacts and spottiness in low count image sets. Other than that, heavily noise reduced dark frames and flats, calibrated with a super bias / noise nuked master bias. Finally, touched up with despeckle and sharp. OK for wide field.
Last edited by rcheshire; 17-07-2018 at 12:21 PM.
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