Re: [ATM] 3 Inch Off Axis Schmidt Camera?

["Bob May" <bobmay@nethere.com>]

Bognetting on a Schmidt camera is purely from the primary being too small
for the corrector plate and the FOV desired.   FOV relates to the size of
the film so the Celestron camera should probably have a primary of about 6"
in diameter to get the 35mm film fully illuminated.  Odds are that the
primary is the same size as the corrector and that would mean that the whole
image (except for the center) would be vignetted to some degree.
Bob May
bobmay@nethere.com
http://nav.to/bobmay
http://bobmay.astronomy.net

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