Why stack pictures?
(some of you may know me as a visual observer).
Eps Aur got me interested in photometry. I want to do my first steps in photometry trying the get the right magnitude of Eps Aur. I'm going to use my Canon 400D.
I have read here a lot about stacking several pictures. I know this is a way to get a higher recording time. But let's say that I can get a good shot of Eps Aur and comparisonstars in one shot will this be sufficient enough to do the photometry? I can put the Canon 400D behind a 66 mm ED apo. After calculating this setup gives me about 3 degrees FOV. But that's maybe just to tight for a good picture.