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Old 01-11-2011, 10:20 AM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
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The SBIG AO can use SBIG's external guide head or the internal guide CCD (in dual chip models) for its operation, hence can not be used with third party cameras.

In the latter configuration it looks at a very tight iso-planic patch of sky that can deliver superb FWHM's as a result. (translation: the further you go off axis the less accurate adaptive corrections become)
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