Astromania 2" Narrowband NBPF H ydrogen-a 12nm Filter - Enhances The Contrast Between Object and Sky - Allows You to Take Images Even Under Urban Skies
Product description:
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H-alpha filter
Astromania 2" Narrowband NBPF H ydrogen-a 12nm Filter. Astrophotography under a light-polluted night sky can be difficult. The solution is an H-alpha filter. The Astromania H-alpha cut-off filter works to filter out a large part of this light pollution.
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Only allows wavelengths above 656nm through
This convenient filter only allows 12nm bandwidth of light centered on a wavelength of 656nm to pass through, which means it blocks a large part of the scattered light and also blocks the light from artificial mercury and sodium-vapour lamps. Young stars embedded in the bright red of a nebula - an H-alpha filter is the expert if you want to capture h ydrogen nebulae in all their glory.
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Enhances the contrast
The Astromania H-aplha cut-off filter enhances the contrast between object and sky, allowing you to take good quality images even under urban skies. Metal filter cell threads directly into the 2-inch barrel of your telescope eyepiece. Mounted in a nicely anodized housing.
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