Thread: Focus on 10 inch dob
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Old 20-05-2012, 08:38 PM
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mplanet62 (Michael)
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mplanet62 is offline 		 
Join Date: Oct 2010
Location: Melbourne
Posts: 86
There's plenty advice on the net. I prefer this one http://www.astro-baby.com/collimatio...on%20guide.htm
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