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Thanks for having a close look Glenn. Is it the first Astrobin image you are referring to? The second recent one I’m hoping seems a bit better but maybe I’m just being hopeful! I thought the issues in the recent one were more on the right and particularly the lower right and it seemed the stars were all angled roughly in the same direction without much coma? I’ll rack through the focuser and check out the position of the laser and see if it moves. The first optical collimation I did after reassembling seemed to get everything very much inline and the laser collimation confirmed things (a slight adjustment of the secondary and primary). I did fiddle with the the imaging train when imaging to see if I could quickly improve things and there was some small movement I could correct.
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