It's really amazing what you guys can do. I'm just starting to get into astrophotography. Here is my 2nd attempt at Orion Nebula. Shot with Canon 6D, 70-200mm F2.8L II (F2.8 @200mm), ISO 3200, approx. 200 images at 1.6s stacked with DSS. (Followed Forrest Tanaka's technique on YouTube.) I don't know if it is the settings I used or the technique I used for PP, it just doesn't look like I was able to get as much detail as some of you.