* 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
    * 1.25" filter
 

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

This 1.25" 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!

Need Instructions?
Download a PDF file of the Instruction Manual for this product. Requires Adobe Reader version 3.0 or higher.

I want to order the Orion SkyGlow 1.25" Filter

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UltraBlock Narrowband Light-Pollution

    * The UltraBlock is the filter for deep-sky observers located at highly light-polluted sites
    * Blocks all forms of light pollution
    * Enhances the sky presence of a significant number of fainter deep-sky objects
    * 1.25" filter

I want to order the Orion UltraBlock 1.25" Filter

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Oxygen-III Nebula Filters

    * Reveals more wondrous details when viewing nebulas
    * Transmits close to 90% of the light corresponding to 2 oxygen-III spectral lines at 496nm and 501nm
    * Completely blocks virtually all other visible wavelengths
    * Features highest quality optical glass in a double-threaded, anodized aluminum cell
    * Recommended for telescopes of 8" aperture or greater and for visual use only

I want to order the Orion Oxy III 1.25" Filter

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