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Can't focus DSLR thru dob
Hi guys, I am using a bintel 12" dob and am very happy with viewing.
But i would like to connect my Nikon D3100 to the scope
I have a bought a T adaptor and extension tube which fit perfectly
I put the eyepiece in the ext tube and connect to my DSLR
But cant focus at all thru the camera
I have read that this can be difficult to achieve
A few questions :
is this possible with a dob?
if so what do i need to do to get focus ?
thanks for your time
Chris
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