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Greg
As I said my two scopes are perfectly aligned. No problem with differences between the two. The problem is with orthogonality between the D plate and the scope mounting plate and of course the orthogonality of the D plate vs the mount.
Getting the scope plate and the D plate exactly orthogonal is pretty damn hard as I have to take down the scopes to reset the plate. Assuming the D plate is true the scope plate seems orthogonal based on its situation with respect to the D plate holes but this is a pretty rough guide. I do not know if there is any easy way to make two plates exactly orthogonal before mounting the scopes.
Gary
That is good feedback. My rough estimate of the degree of orthogonality is around 2 degrees at the moment yet to be fully confirmed. I just want to put the destination in the FOV of the camera and I would resynch before imaging. At the moment my FOV is 10 arcminutes but later with larger camera it will be larger than this. I would think I would be happy with 10 arcminutes.
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