Quote:
Originally Posted by Octane
Rick,
The bias is included in the darks and therefore when subtracting darks from lights, the bias is removed automatically.
H
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Yep, I see that thanks, H. I understand there is some debate about the value of separate bias frames. I haven't formed my own opinion yet. Maybe once I've finished reading the Handbook of Astronomical Image Processing...
Baz: sorry to derail your thread again. I'll move any further comments to the new thread you created.
Just to add a slight on-topic note: the Image Trends Fisheye-Hemi plugins do a good job of correcting fisheye distortion (IMHO).
Cheers,
Rick.