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Old 23-04-2011, 12:06 AM
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scagman (John)
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Join Date: Apr 2011
Location: Kinglake West
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Whats the differance

Hello all,

I am woundering what the differance in setup and results of the following OTA's would be using the same mount, autoguiding scope and a meade DSI II.

GSO 10" f/8 RC
10" f/10 SCT
ED127mm f/7.5 APO

e.g. would you need a focal reducer for 1 setup but not the others,
Different exposure times to get the same detail
Spend twice as long to setup and focus as the others etc.
(I am a total beginner so dont know what other accessories/adj would be needed to make things work)

Reading the marketing hype for the various scopes all are great at imaging and will produce stuning images etc.etc.. (for their price range).

I know things like quicker f/r mean shorter exposure time, larger diameter - more light.

Would there be any significate diferance between them the results.

Any comments would be helpfull.

Thanks
John.
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