Re: 1.25 or 2" focuser upgrade for 60mm refractor

From: Tom Royer (troyer_at_mitre.org)
Date: 12/10/04 

Date: Fri, 10 Dec 2004 08:29:22 -0500

"JJsnooker" <snooker_59@yahoo.com> wrote in message
news:f79bda39.0412100038.47594510@posting.google.com...
> Anyone know where I can buy a 1.25" or 2" focuser that'll properly fit
> my 60mm refractor? It's a Jason 60x700mm...made in the mid
> 1980s...made in Japan...came with a 0.965" focuser. I measured its
> optical tube inner diameter and it's about 61.5mm.
>

Why don't you just buy a hybrid star diagonal. It'll take
1.25" eyepieces, but will fit into a .965 focuser. That's
how I upgraded by first telescope. Orion sells such
a beast for $24.95.

> The only one I found will fit a tube with an inner diameter of
> 59.6mm...that would be about 2mm too loose.
>
> Do today's Chinese 60mm refractors have identically-sized optical
> tubes as mine? If so, I could buy one with a 1.25" focuser and use its
> focuser on mine. 

-- 
Thomas C Royer
Lead Engineer, Software Test
The MITRE Corporation
"If you're not free to fail, you're not free" -- Gene Burns
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