Quote:
Originally Posted by Camelopardalis
So how do the experienced of you do it? Don't touch the camera orientation at all and do flats in the morning?
In my blissful ignorance, I didn't notice anyone doing this, but I probably wouldn't recognise it if I saw it 
So am I better off leaving out the flats until I refine my practical technique? |
I usually do dusk and dawn flats every day I'm imaging. I also have a light box which I use sometimes, e.g. if dusk or dawn is clouded out, but the sky flats work better.
I think it's worth having a go now. If the flats don't work you haven't really lost anything and you may learn something.
If you want to check if camera rotation makes a difference, take a few flats at one orientation and then turn the camera by 90 degrees and take a few more. Make two master flats from the results and then calibrate one with the other. If the result is a nice clean, uniform field then camera angle doesn't matter.
Cheers,
Rick.