Hi Andrew and Grant,
This image was no darks, flats, etc. yet as I have not been home when the sky is clear for a flat (sunny SE Qld??) and Hyperstars and this ccd are suggested no darks required for such short exposures. I do not have too many streetlights around where I am however I managed a M42 last night and some trees in the evening and the same issue with the wrong colours or a yellow/green cast. I tried 0/0, 0/1, 1/0, and 1/1 offsets in Maxim DL but the colour looks wrong in all of them. I have seen some other comments on other sites of similar debayering issues with Atik cameras which may mean a change in software (perhaps Astroart as Grant suggests?) but was hoping I can resolve it with one of the several softwares I already have. Dawn came with the Atik camera but it also did not seem to produce a correct colour rendition (lovely clear images but dodgy colour). It seems that it can be done and the results I have seen from others are very exciting, so hopefully I get it sorted soon.
Thanks
Peter
Quote:
Originally Posted by mithrandir
In what order were you doing your processing? Any darks/flats/bias frames must be done first, followed by debayer, before doing any stacking/rotation. Get this wrong and you'll never get the colour right.
Your colour cast is probably from light pollution, especially with yellow sodium vapour street lights.
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