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Dennis
I have one of these finders and mine works perfectly. I can't find any flaws in mine and I've owned a number of finders.
The fact that the star seems to move about on the cross-hairs as you move your head is because it is not quite in infinity focus and you are using your eyes natural accomodation ability to bring it into focus. Undo the nurled ring behind the objective cell, and screw it right back. Spin the objective around until you get a sharp focus with your eyes relaxed. As you are focussing look up at the skies ocassionally naked eye to make sure your eye is at a distant accomodation as you focus the finder. You may be surprised at how far you have to move the objective. Finish by screwing the knurled ring back up against the objective cell.
Don't expect too much from an 8X scope though. Expecting to get a planet on a small CCD chip is probably expecting too much.
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