|
Thanks for the pointer Mike.
I was more interested in the methods people use for obtaining flats than the theory.
It seems to me that it would done best before or after taking the main shots (so that dust does not move, focus is the same etc...).
I can think of an easy way to make a diffuse 12V light box that will fit over the end of my 4" refractor, but building the same thing for a 16" Dob poses a few problems, not least of which are size and even field illumination. Any ideas?
|