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Orion Ultrablock filter and large exit pupil
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18-05-2007, 03:26 PM
ausastronomer
(John Bambury)
Registered User
Join Date: Mar 2005
Location: Shoalhaven Heads, NSW
Posts: 2,620
It will work fine. Stop worrying, go buy it
I use a 2" narrowband (DGM Optics NPB filter) on a 31mm Nagler in an F4.5 scope and it works beautifully
CS-John B
ausastronomer
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