Never mind. It looks to me as though the backfocus of the OAG, plus spacer (or filterwheel), plus camera backfocus is greater than 57 mm. Sent...
I want to use an off axis guider with my f3.6 Newtonian. I will be using a Televue Paracorr 2 which has a backfocus of 57 mm. Can anyone tell me...
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