Quote:
Originally Posted by Daveskywill
Also got the drift align so good I could do a 4 minute exposure without
"real" trailing (no guiding) with a barlow. Then went to no barlow and short-
er exposures and it started trailing. That seemed strange.
David
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You were using a wedge?
Also, a ccd image will be far more sensitive to polar misalignment drift than you eye. So try googling "ccd drift alignment" and you'll get all sorts of good advice.
Josh