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Old 14-11-2009, 07:32 PM
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Lonnie
Mr Lonnie

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Join Date: Jul 2007
Posts: 98
Hi david

I am using an orion xy adjuster for the guide camera which gives play of about 1 inch to find guide star, I know my guidescope isnt square with ota but its not terribly far off. Do you mean as a balance issue for not being square? Its attached ontop of the celestron with a losmandy plate.
Flexure is something I think could also be a problem I am going to try focus with Nikon camera attahced without the focal extender and see if I can focus when it is basically right up against the visual back. Not sure if I can get focus that close but I will give it a try.


Quote:
Originally Posted by dpastern View Post
It could also be flexure between the guide and main OTAs, or the camera isn't square, or the guidescope isn't square.

My understanding is that you should balance the setup first (with camera attached), in both axis. Then you should do a rough polar align, and then a drift align. You shouldn't need to change the balance for polar alignment, it should be simply adjusting latitude and azimuth (I think that's the right term for what I mean).

Dave
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