Thread: Review: Skywatcher 10" dobsonian
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  #13  
Old 06-05-2015, 06:54 AM
N1 (Mirko)
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Join Date: Oct 2013
Location: Dunners Nu Zulland
Posts: 1,665
Hi Billy, every newtonian has to be collimbrated:

http://www.iceinspace.com.au/63-390-0-0-1-0.html

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