Thread: It Comes Down to Go-To vs Dobsonian + Argo Navis?
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Old 25-05-2010, 11:41 PM
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Suzy
Searching for Travolta...

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Join Date: Jan 2010
Location: Brisbane, Australia.
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I was doing some research recently on filters and came across this terrific link- just about everything you need to know. Hope it helps.
http://pages.sbcglobal.net/raycash/filters.htm
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