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Home > Classifieds > Astromart Classifieds > Filters > Classified #242891

For Sale: Custom Scientific H alpha Filter *sold instantly*

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Hydrogen-alpha 4.5nm passband (1.25). This filter is designed for non-solar imaging, and is used to image deep-sky objects that emit in the h-alpha passband. It is too wide for solar-prominence viewing, but is ideal for deep sky.
Pristine condition!
Used once!
$225 new
Asking $200 shipped Conus

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