C-11 + FR vignettes with wide field eyepiece

From: Szaki (szaki10_at_comcast.net)
Date: 02/04/05 

Date: Fri, 4 Feb 2005 07:03:54 -0800

My 2" Pentax 40 mm 65 deg eyepiece vignettes visually in my old Ultima C11
OTA using the Celestron .6 focus reducer! I see a dark ring around the edge
of the field, so not the full field.
Any one has the same problem?
What wide field eyepiece would work with this set-up?

Relevant Pages

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