I'm having the same problem. I have an ASI071mc-cool connected through two extension tubes, a celestron oag, and a 6.3 focal reducer to a celestron evolution 9.25. My scope focal length is 2350mm, x 0.63 for the focal reducer = 1481mm. However, when I enter that as my focal length, it still tells me it sees no stars, and suggests I check my focal length. Any help would be greatly appreciated!
