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Apeture & "f " stops

Started by bobguz, 05/17/2004 12:50AM
Posted 05/17/2004 12:50AM Opening Post
I have a new 8" Celestron Advanced Series Newtonian. It's an f5 scope. I'm lusting for a Meade SN 10". That's Meade's corrected, f4, 10" Newtonian.

Would I see any significant difference in photos taken with one or the other?

Bob
Posted 05/18/2004 05:23AM #1
Hi,

Do you mean prime-focus photography? If yes, and if you don't have a coma corrector for your Newtonian, the Schmidt Newtonian should give you better image quality because of its less coma. And, of course, the extra 2" of aperture helps too.

Cheers,
Wei-Hao

Wei-Hao Wang
http://www.aoc.nrao.edu/~whwang