Captured around 65 x 5 minute subs of M8 as well but I think my gain was to high . As I am struggling to process my final picture .below is just 1 sub that has just been strecthed . I only just worked out I can fit M20 in the same frame
Yes it's has been cropped . I can fit m20 in with m8 quite easily . The 80nb has a nice field of view , I am still amazed at some of photos I have taken with this scope.