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Old 27-11-2017, 11:46 AM
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LewisM
Novichok test rabbit

LewisM is offline
 
Join Date: Aug 2012
Location: Somewhere in the cosmos...
Posts: 10,388
Quote:
Originally Posted by Kunama View Post
My latest scope purchase :

With thanks to Simon , I now have the perfect scope for my public outreach efforts at Mount Stromlo..... (I really never felt comfortable having people climb a ladder to my big scope's eyepiece)

For the princely sum of $250, I bought Simon's 10" GSO Dobsonian which had been unused for quite some time. The scope came with a perfect laser collimator, 8x50 RACI finder and Telrad finder as well as an extension tube.

Though dry stored, the mirror had a seriously thick layer of dust that had accumulated during storage. I got the scope home and dismantled it completely into its components, then washed both mirrors, the primary was left to soak for a few minutes before a soap and water wash revealed a decent mirror that had been hidden by the dust.

I then dismantled the focuser, cleaned it and replaced one screw and refitted it. Then I noted that the secondary was too far down the tube to line up with the focuser axis, so after a minor modification to the mounting, I had the optics aligned as they should be. A quick collimation with the laser showed all was lining up well but the collimation screws were a nuisance so out they came to be replaced with M4 x 30mm stainless cap screws.

Hoping for a "First Light" tonight


Pics: GSO 10", Clean Mirror, Collimation screws, Clean focuser and Finder
Is this the contingency scope in case of BTSA issues?

Quote:
Originally Posted by Kunama View Post
Who says I am an equipment snob
No one (yet)
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