Fast Scope - Bad Scope?Posted By Mark Peterman |
Just looking for a little nudging in the right direction on a scope purchase.
I have previously owned and used 2 dobs and a SCT being 8" f/6, 10" f/6, and 10" f/10 but now considering a 10" f/4.5 dob with a Discovery mirror.
Is the fast f/4.5 going to be dissapointing after using only f/6 and f/10 scopes in the past? Obviously I'm worried about coma and how much of the field will be crisp and "usable", especially on open clusters.
My viewing runs the full spectrum of planets, open and globular clusters, galaxies, and nebula.
My eyepieces will eventually be Naglers, Panoptics, and Radians.
Should I take the plunge or look for a slower scope?
Thanks,
Mark
I have previously owned and used 2 dobs and a SCT being 8" f/6, 10" f/6, and 10" f/10 but now considering a 10" f/4.5 dob with a Discovery mirror.
Is the fast f/4.5 going to be dissapointing after using only f/6 and f/10 scopes in the past? Obviously I'm worried about coma and how much of the field will be crisp and "usable", especially on open clusters.
My viewing runs the full spectrum of planets, open and globular clusters, galaxies, and nebula.
My eyepieces will eventually be Naglers, Panoptics, and Radians.
Should I take the plunge or look for a slower scope?
Thanks,
Mark