Quote:
Originally Posted by orion69
Why is your OAG 45mm from camera sensor?
OAG should be as close as possible to camera sensor, shortest distance that can achieve focus..
If you need to preserve 55mm backfocus then add spacer before OAG, not between OAG and camera.
And there is no need to rotate OAG, Lodestar is very sensitive, you'll probably never have to chase guiding star.
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Thanks - that's great advice... but the OAG is directly screwed to the filter wheel, which is directly screwed to the camera. I am as close as I can get, I don't want to guide through narrow band filters....