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jay52
Carpal Tunnel
Reged: 09/26/04
Posts: 2280
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Re: Hyperstar
08/16/08 06:21 PM
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Quote:
That's my thinking.
I also have a Sky90 with the f/4.5 reducer/corrector. But, for extended objects the "speed" of a f/2 system allows much shorter exposure times. The C14 with Hyperstar is F/1.9 !! With fl=710 mm. That gives the image scale that I'm looking for, with the promise of faster imaging.
Cheers!
Pascal
Of course, 11" and 14" scopes accumulate a lot of light.
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jay
www.allaboutastro.com
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