On Fri, 01 Oct 2004 21:56:59 GMT, Matt St. Helens
wrote:

Hi:

What kind of FOV can I get from an f 8.75 80mm refractor? What is the
relation that tells
you this?


There is a Telescope Optical Parameters Calculator available for
free download at:
http://www.vvm.com/~piscescs/telecalc/telecalc.html

Cheers,
Larry G.