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Subject: Re: [M]: LX200: Offaxis Guiders
From: Gerry Reynolds
Reply To: mapug@shore.net
Date: Wed Nov 20 08:22:20 1996

>35mm neg with virtually zero vignetting. The Giant EG has all the qualities
>and virtues of the standard EG plus a giant 80mm lens that yields coma free
>star images right to the edge. A truly awesome device.
>
>Philip Perkins -- 51 27'N - 1 36'W
>(philip.perkins@pop3.hiway.co.uk)
>

I thought I've been told on MAPUG that SC's do NOT have "coma" but have
field curvature instead, especially the f6.3 (such as my 10" LX200). I've
also been told that there is not much I can do about this and I get "out of
focus" stars that appear to have negative coma starting about halfway to
the edge of the 35mm film. Does this 80mm lens really address this problem
and give point sharp stars to the edge?

Gerry Reynolds
gerry@fc.hp.com