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Orion Hydrogen-Beta Nebula Filters for Eyepieces
$99.99 - $129.99
$89.99 - $116.99
Accepted Payment
  • Our Hydrogen-Beta Filters help significantly improve resolution of expecially faint and challenging nebulas such as the Horsehead, California, and Cocoon Nebulas
  • A Hydrogen-Beta filter enhances views of nebulas by isolating the hydrogen-beta spectral line centered at 486.1 nm with a 12nm band-pass
  • Specialized Hydrogen-Beta filter blocks all other wavelengths of light and effectively blackens the background sky, allowing the faint nebula to become clear
  • For best results use a Hydrogen-Beta eyepiece filter with a moderate to large aperture telescopes under clear, dark skies
  • Available in two sizes to fit 1.25" and 2" threaded telescope eyepieces and diagonals - not recommended for astrophotography

Our Orion Hydrgon-Beta filters help backyard astronomers to see faint and elusive nebulas such as the Horsehead, California, and Cocoon Nebulas. These filters block everything but the hydrogen-beta light that these and some other faint nebulas emit, providing the contrast needed to observe them through a telescope. By isolating the hydrogen-beat spectral line centered at 468.1 nanometers (nm) in a 12nm band-pass while blocking other wavelengths, these filters effectively blacken the background sky, allowing the faint nebula to become clearly defined for visual study. Not recommended for astrophotographic use. 

Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.


Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.