Thanks John
I've actually ordered it in the 1.25" format and it works out about the same price as the Astronomik and Lumicon UHC filters in the same format.
I was encouraged and motivated to make the purchase by the glowing praise of a few of your American "friends" like Phil Harrington (Star Wares), and Optical Consultant Mike Palermiti, who had given it very high marks in comparisons with other narrowband filters
According to those knowledgeable gents it actually outperformed a few of the UHC filters from some of the more well-established manufacturers?
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