Orion - SkyGlow Filter, 2 inch

An Effective Weapon for Combatting Bright Skies, Bad Contrast

SkyGlow Broadband Filter, 2 inch

    * The SkyGlow filter enhances deep-sky observing in moderately light-polluted skies
    * It blocks the most common wavelengths of light pollution for increased contrast and better views
    * SkyGlow improves the views of nebulas, galaxies and clusters
    * 2 inch filter

Light pollution is waging war on amateur astronomy. But don't surrender — fight back with this Orion SkyGlow broadband filter!

This 2" SkyGlow Broadband Filter is an advanced multilayer "interference" filter that blocks the most common wavelengths of light
pollution while passing desirable wavelengths with very little attenuation, yielding dramatically better deep-sky views.

It features improved blocking of mercury-vapor light and higher transmission at critical hydrogen-alpha and hydrogen-beta lines
than competing filters. Bright, light-polluted skies appear much darker, and the contrast between object and sky is improved
significantly.

Enhances All Objects
This contrast-enhancement effect is particularly apparent on nebulas. Unlike stars, emission nebulas give off light in a very
narrow range of wavelengths. SkyGlow filters allow maximum transmission of the important wavelengths of hydrogen-alpha,
hydrogen-beta, and doubly ionized oxygen-the ones most commonly emitted by nebulas. Views of galaxies and star clusters are also
enhanced, although not as much.

Why suffer under light-polluted skies any longer? Order your SkyGlow light-pollution filter today. It really works!