Optolong Moon and Skyglow Filter 2 inch 20410 night sky observation and astronomy

night sky observation and astronomy

Built in polar scope with illuminator

Teflon azimuth bearings

When you are outside doing astronomy

Optolong Moon and Skyglow Filter 2 inch 20410 night sky observation and astronomyOptolong Moon and Skyglow Filter 2 inch Optolong Moon & Skyglow filter is designed to darken the background sky by blocking light transmission from skyglow 589nm and many street light emissions from artificial light. Its high efficiency preserves image brightness, reveals more details and increases contrast of moon, galaxies, nebulae and globular star clusters. Main Use Ideally it is quite versatile filter for visual observation and astrophotography