Thread: OIII - So that's what it's for!
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Old 24-03-2016, 02:59 PM
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glenc (Glen)
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glenc is offline 		 
Join Date: Jun 2005
Location: Terranora
Posts: 4,406
I have a UHC and an OIII filter.
I mainly use the UHC because the OIII makes the background much darker.
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