If you are having difficulty finding Sigma Oct. do a long exposure thru Pole master camera in its spot (5 mins set gain to 0) using Sharpcap and the star trails will indicate where to move the mount to get Sigma Oct in frame...the trails will show you where CSP is surprisingly well...if you have your main scope properly parked a long exposure thru it gives a good indication where CSP is...assuming you dont have too bad cone error.
Alex
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