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Fred I have to agree with marc. I get a star on my AO8/st4000 combo around 80% (except galaxy hunting with the vc200l....sigh) of the time without having to hunt for a star in the sky6. The guide star is selected by maxim, in ccdap.
I use a heavily loaded eq6 and NEVER have elongation (@1800mm) with the ao runnining even if I have the ao at 2hz or slower. I cheat by using a osc and dont have to have a bright star, because of no light loss via colour/nb filters, so the guide star can be very dim and still get successful A0 guiding without oag's.
I think the Adaptive optics is one of the best investments I have made as regards imaging.
Brett
Last edited by bert; 02-04-2010 at 09:40 PM.
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