This filter isolates only the hydrogen-beta line of the spectrum (486nm) in a 15nm wide bandpass.
Astrodon H-β filter, 15nm bandpass (Close-Out)
$350.00 – $360.00
Description
Astrodon hydrogen β 15 nm filters. This filter isolates only the hydrogen-beta line of the spectrum (486nm) in a 15nm bandpass.
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