Quote:
Originally Posted by Blake
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With the Mak-Cass, the major concern is the focal length. F/15 seems very slow, which might be good for planetary and smaller objects, but can wider field objects like the orion nebula or andromeda galaxy fit in the fov of this scope? ....
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A full size DSLR sensor at the focal length of these bad boys will give you a field of about 45'x30'....
Andromeda - no way....
Orion - will squeeze in the central areas....
These scopes will just frustrate you in imaging as a beginner (or even an old hand!) - think more along the lines of a refractor or maybe even a fast newtonian - a refractor like an ED80 is a great imaging scope, and you'll always find a use for it even once you've moved on to a C14 or such....
