I recently purchased a new AR152 from Explore Scientific. It’s big and beautiful and the stars are gorgeous... as long as they are dimmer than 2.5 magnitude, that is! I don’t like the focuser, though. When I use my Binoviewer and point the scope above 60o or so, I need to “help” the focuser move in. I’m going to replace it with a Moonlite. I’ve always wanted to try a Moonlite, so now is the time.
At the same time, I’m going to cut the tube 45mm in order to use my Binoviewer without a GPC or Barlow. The Moonlight is a 2.5” focuser with a 4.5” draw tube. The stock focuser is a 2” with about a 5” draw tube. It seems to me that I shouldn’t have any issues with cutting off the light cone. The draw tube on the Moonlite will be about 1.25” further in, but it is a half inch wider than the stock draw tube.
Will this be ok? I could probably get away with cutting just 40mm if I need to.