Thread: 150mm Skywatcher Achromaitc F/8-Tuning air Spaced doublet
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Old 14-10-2012, 11:21 PM
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anj026
Plyscope

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Join Date: Oct 2006
Location: Perth
Posts: 531
There is a bit of information in this review that may be helpful.

http://www.cloudynights.com/item.php?item_id=829
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