Quote:
Originally Posted by Omaroo
I thought the point of the exercise was to see where it moves... i.e. to be able to compensate for the camera not being mounted perfectly square to RA and Dec axes.
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I think PHD doesn't care about the orientation of the camera. I remember Craig Stark saying that in one of his posts a while ago. That's the best thing about it. It doesn't care where North, south East or West is in the camera FOV. I'm pretty sure though that calibration is to know how far the mount moves for a known pulse time. pemPRO calibration works exactly the same way. The program needs to know how far the mount is going to move so then it can scale the pulses for known deviations while guiding. That's my understanding of it anyway.