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Old 08-11-2010, 10:10 AM
andrew2008
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andrew2008 is offline
 
Join Date: Apr 2008
Location: Brisbane. Aus
Posts: 349
Quote:
Originally Posted by Steffen View Post
The 16mm Stratus has about the same true field as the TV 32mm Plössl (about 50 minutes) and as such is probably not a good fit. Something with a field stop of about 15mm would be a good next stop, so the 11mm Nagler seems well placed. It gives you 34 minutes true field. If you want less magnification you could bridge the gap with an 18mm Radian (42 minutes true field, 83x).

Cheers
Steffen.
Think you mean the 16 nagler there? From my maths the 32mm (47x) and 24 Pan (62.5x) offer the same FOV, around 1.1 degrees. The 16 nagler (93x) and 19 Pan (78x) are very close also. Both around 52 to 53' . I had thought of the Radians but the 18mm is only about 6' bigger than than the 11T6.

From the advice so far it seems the Pans are the way to go. Tick most of my boxes which are 1.25" , light, & fairly good eye relief. They also get great reports and are highly recommended in the Backyard Astronomers Guide.

Last edited by andrew2008; 08-11-2010 at 02:44 PM.
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