Thread: Do I need an Oiii filter?
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Old 12-12-2011, 10:26 PM
David Niven (David Niven)
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David Niven is offline 		 
Join Date: Nov 2011
Location: Melbourne
Posts: 111
Do I need an Oiii filter?
I was observing the Orion Nebula the other night and the sight was not as impressive as I would expect on my 10ins dob.
Should I use a broadband filter or an OIII filter?
Can these filters improve on the nebulosity?
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