Orion 5660 1.25-Inch SkyGlow Broadband Eyepiece Filter

From the Manufacturer

For observers viewing through a telescope from suburban or city skies, the Orion SkyGlow filter can significantly improve the quality of your view. The SkyGlow filter enhances deep-sky observations in moderately light-polluted skies. Broadband filter blocks the most common wavelengths of light pollution for increased contrast and better views. SkyGlow eyepiece filters improve views of nebulas, galaxies as well as open and globular star clusters. 1.25" filter with metal filter cell construction compatible with all 1.25" Orion telescope eyepieces and filter-threaded 1.25" accessories