New double wavelength filter OIII+Ha

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Merlin66
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New double wavelength filter OIII+Ha

Post by Merlin66 » Fri Mar 30, 2018 11:59 pm

The new filter from Cyclops may be of interest..... basically a Continuum white light with added Ha, 10nm bandpass.
https://www.cyclopsoptics.com/astronomy ... ilter-48mm
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.yahoo.com/neo/groups/ast ... scopy/info
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