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On 24/09/2018 at 17:37, HAsun said:

HI Pragmatist,

I have in my collection of scopes a Questar 3.5" with a quartz mirror dating to 1964 according to Questar. I remember speaking with David Nagler at Astrofest in 2017 and telling him I had a 1964 vintage one, and he replied that he and Al also had ones of the same vintage. They very nice scopes to look at as well as to look through,, and the engineering is wonderful.

Those Quartz glass are really nice. I think they are guaranteed to 1/10th wave now as in the 50th anniversary model. 

I did a first light and am incredibly impressed with this scope. 

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On 24/09/2018 at 19:00, Peter Drew said:

I have a 90mm ETX which can give a Questar a run for its money, not an "objet d'art" though.

Perhaps more "an object for darts", Peter??:grin::grin:

Dave

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