Quote:
Originally Posted by gregbradley
CCDstack will also do adaptive darks so if you have a bias frame then it will adjust each frame to a weight. You can see it doing that in the dialogue box.
The other way is simply process all the 300's to a master. Then process all the 180s to a master. Then combine the 2 with the various combine methods and pick the one you like the best.
Greg.
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Darks - no problem, I haven't considered reduction in this thread because for the purposes of my stacking I'm considering that my images are perfectly reduced. In reality I perform reduction in Maxim before going to CCDStack at the moment.
So, when it comes to stacking I'm starting with 180s L reduced/calibrated frames and 300s L reduced/calibrated frames.
I agree all the 300's and all the 180's could be combined to two master files.
My real question lies in your simplistically put "combine the 2 with various combine methods"
What I'm asking is what combine method I should use to give appropriate weighting. I think I have the answer ... weighted-sum in CCDStack, which might or might not be different to PixInsight's method Rick has mentioned
