Thread: [NOT REQUIRED] SME 60 H alpha filter
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Old 09-11-2018, 11:36 AM
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Merlin66 (Ken)
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Merlin66 is offline 		 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,909
Hmmm
I'm surprised that there are no SM60 etalons around....