Thread: Is a DGM NPB filter ok for a 5" scope???
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Old 08-01-2011, 11:23 PM
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erick (Eric)
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Join Date: Dec 2006
Location: Gerringong
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Not sure. One worked well on the Carina Nebula in my 8" reflector a few years ago.

If you bought one second hand, and then found that you weren't satisfied, I'm sure you could readily sell it again to an IIS member for the same price.
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