Celestron Moon Filter Kit 4 pcs 1.25

Three ND filters 0.3 / 50%, 0.6 / 25%, and 0.9 / 13% along with a Moon & Sky Glow Filter allow you to choose the perfect filter for your viewing conditions. The Sky Glow Filter provides a high-contrast view of the lunar surface and enhances the observation of deep-sky objects in light-polluted skies. Includes case and moon map. The Moon & Sky Glow Filter selectively reduces light transmission at various wavelengths and significantly improves contrast for lunar observation. This filter gives the moon a very bright violet color. In light-polluted skies, the Moon & Sky Glow Filter offers some contrast enhancement when viewing deep-sky objects, as it blocks certain wavelengths associated with common forms of light pollution, such as sodium low-pressure streetlights.