Watched the video... he's just shooting on a tripod w/ no tracking... and basic advise like "avoid light pollution", and "beware of people with head...
Brant, you were right -- something was off. I did a bit more testing this morning. I believe the errors I was getting were the result of the aperture...
Based on comments from Roger Cicala (owner emeritus of LensRentals), repairing a lens doesn’t take too long regardless of the degree of damage. What...