Alstar 2" Moon Eyepiece ND96-0.9 - Bundle with - 2" Moon Eyepiece ND96-0.6

Neutral density filters are excellent filters to reduce the overall brightness of an image to cut down glare while viewing bright astronomical objects through a telescope. They are useful for splitting binary systems, comfortably observing the moon, or stacking with other planetary filters. ND filters retain true color balance of the objects being observed since all wavelengths are transmitted uniformly over the entire spectrum.

• Especially useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming
• They are useful for splitting binary systems; comfortably observing the moon; or stacking with other planetary filters
• Perfectly neutral color will not alter the natural color of the Moon
• This ND96 neutral density filter allows 25 percent of the visible light to pass through
• Metal filter cell threads directly into the 2 inch barrel of your telescope eyepiece