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Prime focus Problem
Hi,
I have a 8" Newt and my friend and I are trying to do a bit of astrophotography. The camera is a 450d and we have a 2 inch tube mount for the camera that goes into the focuser. However we can't seem to get anything to focus. I have the focuser all the way inwards as far as it goes but it still needs to go more.
Any suggestions on what the solution to the problem is.
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