Thread: Keyhole with Tal 200k
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Old 12-01-2006, 07:25 AM
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Robert_T
aiming for 2nd Halley's

Robert_T is offline 		 
Join Date: Oct 2005
Location: Australia
Posts: 2,959
very nice Bert

what are you using as an autoguider? maybe one of the commercial SCT focal reducers would work on your TAL to get down to F6.3 or 3.3 - more light and perhaps more within the tolerance of your autoguider?

cheers,
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