From: "Tom Krajci" 
To: 
Reply-To: "Tom Krajci" 


>From: "Jack Schmidling" 

>First question, is it possible to get a coma free field over a 1/2"
with
>this system?

The Lumicon coma corrector was designed to work with a 17 1/2 inch f/4.5
system (Coulter mirror of those days gone by).  I'm sure it will help
somewhat with the 4.25 inch scope, but you'll have lots of field curvature
because of this smaller mirror...and I don't know how much the corrector
will help in that regard.  You may not have coma, but your corners may be
out of focus when the center is in focus.

I suppose the quick and easy answer in your case is to give it a try.

Tom Krajci
Tashkent, Uzbekistan


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