Thread: Prime focus??
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Old 29-10-2019, 10:01 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,052
I image at prime focus with my DSLR in both a 6” and 8” Newtonian reflector
I had to move the primary mirror further into the tube by about 4 or 5mm to achieve focus
I just used some compressed cork flat spacers and this pushed the mirror into the tube enough
My focuser now has 2 full turns of in focus and out focus
Problem fixed
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