Quote:
Originally Posted by mill
Just move the primary mirror up the tube with some longer bolts and some stronger springs and you can get focus.
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Apart from the fact that sounds like a tricky job and needing extra parts, wouldn't that then preclude me from using my dob for visual observing?
I found that when I replaced the skywatcher "shaky" standard rack and pinion focuser with a GSO 10:1 crayford, because it is shorter I have to clamp the 2" to 1.5" adapter back from the bottom stopper and likewise with the EP's to get in focus. If I push them all the way in, they are too close even at the end of the travel of the focuser (basically the opposite issue of the camera).