RE: [APML] Another intro

[Jon Kolb <jkolb@mindport.com>]

Tom,

> Has anyone heard this rumor about the C 9.25 also?  (I don't 
> have any hard
> facts to back this up.)

I recall reading somewhere that the C9.25 has an f/3.3 primary and the
secondary magnification is about 3, whereas the "normal" SCTs have an f/2
primary and a secondary magnification of 5.  I may have the specific numbers
wrong, but the C9.25 supposedly has a slower primary.  That could be the
reason for the flatter field.

Sincerely,
Jon Kolb
Adventures in Astrophotography
http://home.datawest.net/jkolb/
jkolb@mindport.com

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