Hi Andy, I use a 60mm guide scope WITH a barlow on an 800 mm Schmidt
Newtonian with good results. The results without the barlow (1.8X) were not
as good as I would have liked.

Blair Mac Donald


-----Original Message-----
Date: Tuesday, May 18, 1999 7:31 AM
Subject: [M]: OT:Guidescopes


>I will soon be using a 60mm refractor as a guidescope on a 10" LX200, can
>anyone tell me whether I should use a Barlow on the guidescope? I seem to
>remember reading somewhere that the FL of the guidescope should be half
that
>of the main scope, is that theory correct? BTW the 60mm refractor has a
>focal length of 700mm.
>
>Thanks in advance
>
>Andy.
>
>
>

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