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My first DSO. Of course M42. Using a C8 (with focal reducer), Losmandy GM-8, Cannon 60D (not modded). Unfortunately couldn't manage anything more than 30 seconds, so had to crank up iso. Having problems, not with polar alignment, but with input voltage to the mount. It seems to give out in RA every so often and image drifts west just slightly enough to give me trails. I was told to try using more amps but stay at 12volts. I have been using 12v and 1amp. But going to try 12v 3amps to see of that fixes my problem. Hopefully it is just a power issue. It's a used gm-8, but everything looks good and sounds good.

This was roughly 12 X 30 sec, @ 3200 iso. Think I used 5 darks.

Well, single shot, but showing twice in a row

Sorry about that !

Thanks for that! I was really trying to spot the difference!