Color me naively confused. I took this the other night and I can't seem to get the post-process where I want it. I was trying out the Zed seven with kit at 24mm at f4.8 for only three seconds at ISO 1600. Plenty of room to open the exposure, but I am reluctant to over-process. My question is, when do you know when to say when? I can't tell where the stars end and noise begins. This is not my first foray into the night sky, but I always end up frustrated.