Robert The more I learn, The more there is to learn! Orange Zone Dark Site 3 Mounts 4 Imaging Cameras 3 Guide Cameras OTA's = yes
Stellarvue SVR90T w/ SFF7 flattner
Celestron EdgeHD 800
Losmandy G11 / Gemini-II w/ opwb
Quote:Your first picture up there needs a crop of the stacked images before you do anything else. You've got diagonal lines in the upper right corner, and probably some black areas where there were no images. You need a cropped, solid image before you do anything else. I see it in the second version, too. Those areas may negatively affect your levels, curves, and gradient removal. Just a suggestion.
Quote: Maybe I need a bit more or would going with a longer exposure (say 15 minute) with the same number of subs do better?