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Old 22-10-2010, 12:43 PM
NGC2264 (Gordon)
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Join Date: Feb 2009
Location: City
Posts: 18
Quote:
Originally Posted by ausastronomer View Post

3. 26mm Nagler T5. IMO this is a better eyepiece for use in smaller scopes than the 31mm Nagler T5.
Would you be able to elaborate on this one a bit more John. What are the big factors for the 26mm over the 31mm to you?

The 31mm would give a 20% greater actual FOV than the 26mm (91.3 v 76.1). I see the exit pupil is quite different 4.8 (26mm) v 5.7 (31mm).

I quite enjoy viewing open clusters and want to make sure I can get en eyepiece that will allow me to put it all in the eyepiece so to speak.
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