ATM Re: How to disassemble a Questar ?

["Antonio de Ugarte" <de_ugarte@terra.es>]

Hello Michael,
    The tube is threaded to the back of the telescope. I discovered it by
accident while I was trying to remove the solar filter that had tightened
too much because of the heat. My Questar is 33 years old and still works
fine, even after dissasembling the tube several times ;-)
    Let me know if I can help any further,

            Antonio

----- Original Message -----
From: <MPSeiler@aol.com>
To: <atm@shore.net>
Sent: Saturday, June 22, 2002 11:34 PM
Subject: ATM: How to disassemble a Questar ?


> Has anyone ever disassembled a Questar 3.5" successfully ? I just had the
> luck to acquire a used one (after admiring this type of scope for 30
years),
> but it has mould growing on the inside of the corrector plate and on the
main
> mirror, so I need to open and clean it. Apparently this fungus thrives on
> fine organic dust that has collected on the optical surfaces.
> Does anyone know how best to open it without losing collimation or worse ?
>
> Michael
>