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I have not had my guiding working well and as a result go for 30 second to 40 second subs.
At first that was the only option but haveing produced many images via short subs I really think short subs have an advantage.
If something goes wrong a little cloud, satellite plane or UFO☺ ruins a sub you only lose 30 seconds..cloud a little more..but I find I can select the best with ease...it does take time but often I just tell Deep Sky Stacker to stack only 75%.
My last image was littered with satellites up to three in one frame...I stacked thinking it would be neat to have an image with I guess 20 lines ☺ but Deep Sky Stacker eliminated them..I guess I must have left the percentage at 75% from a previous stack. ..but I doubt if I was doing day 5 minute subs I would have a decent image as I have expect all would have had satellite trails.
As to actually guiding check out youtube...there are many great tutorials...there is one in particular that if I can find it I will post it for you...
Alex
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