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Is a 90mm guidescope good enough?
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23-09-2007, 09:39 PM
Alchemy
(Clive)
Quietly watching
Join Date: Jul 2007
Location: Yarra Junction
Posts: 3,044
with todays autoguiding programs you dont need a log focal length guidescope, 600mm is fine. try keeping f ratio down as it will give you more opportunitys for guidestars, i tried guiding with f11 and found it a pain. went for ed80
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