The important considerations are:

Rigid mounting for the guidescope.
No flexure in the focussing tube (the Orion ST loses out here).
f/l at least half that of the main scope.
The whole assembly is well balanced.

A 60mm refractor would be best on the 8" I think, the 90mm is a bit big
(long).

Chris Heapy

> ----------
> Sent: 17 May 1999 05:07
> Subject: [M]: (OT) Guide Scopes
>
>
>
> Hi,
>
> I am using a Meade 8" LX50, and would like to add a guide scope. What are
> the important considerations in choosing a guide scope for my LX? I read
> some where that a guide scope should be of a particular focal length or
> focal ratio.
> I was considering the Orion short tube as I am on a budget, but I also own
> a
> Meade 90mm refractor at 1000mm focal length. My only concern with the
> 90mm
> as a guide scope is its weight,
> Any suggestions or recommendations would be welcome.
> Thanks, guys.
> Ron Peterson
>
>
>

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