Very basic but complicated question. I do my imaging with a EQ6pro 8" newton and 550d canon. Now im keen to make a big dark library, but what would be a rough time and iso chart I could go off?
I have been doing 5min subs @ 400iso and 800iso with a cam temp of av 32 degrees, could I go 10mins ...20mins to get more data? I guess that would that require me to drop the iso at that stage. I do get good results with 5min subs, with alot of targets on the other hand.
Tough one my next target is the Helix Nebula.After a failed attempt with 5min 800iso subs there wasn't much data to play with you could barely see it. This is where I need to push this setup, if that possible.
Cheers,
Dan
