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Thanks. Having no experience to date with narrowband I wasn't sure what wavelengths could be captured when the moon is up. Both my DSLRs have a full spectrum mod, normally I use each of them with an Astronomik L clip in filter. If I remove the clip in filter I have sensitivity into the NIR if I want it. I mention the 1000 oaks as the response curve linked above seems to suggest that it will pass both Hbeta and Halpha with >95% and a reasonably narrow bandpass for both (narrower than a typical UHC filter).
Last edited by rmuhlack; 11-08-2014 at 08:36 PM.
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