Question...........
My question is .... having a ' Crayford ' Focuser on the back of a SCT , does it do away with the use of the original focuser.
or ....does it ' supplement ' the original focuser to ' combat ' mirror shift.
I'm assuming you ' focus ' with the original focuser, and then re-focus gently with the Crayford to correct the mirror shift in the SCT ...!!
Would this be right !!
Col....
Last edited by FlashDrive; 03-04-2019 at 09:26 PM.
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