Astrodon 20 nm Filters – H-α 20nm (Close-Out)

Astrodon 20 nm Filters – H-α 20nm (Close-Out)

$350.00$360.00

H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter, and this 20nm H-α is the same formulation but in a wider bandpass. Hydrogen is ubiquitous in the cosmos and is present in emission nebula (North American, Pelican), planetary nebula (Dumbbell, Ring), Wolf-Rayet objects (Crescent, Thor’s Helmet) and supernova remnants (Veil). Many imagers like to present just a black-and-white H-α image of an object. It is has a beauty all by itself, like an Ansel Adams photo.

 

 

Earn up to 360 FarPoints.

Description

Astrodon Hydrogen Alpha 20 nm filters are formulated just like our narrowband hydrogen alpha filters, but with a wider band pass.

Step up to the quality and performance of Astrodon filters.

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Tutorials by Astrodon’s founder, Don Goldman

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Astrodon Narrowband Presentation