Optolong Moon and Skyglow Filter 2 inch 20410 innovative eyepiece design (8 elements

innovative eyepiece design (8 elements in 5 groups) features oversized eye lens elements for comfortable viewing and provides a highly corrected image

night sky observation and astronomy

1 x 22 lb Counterweight

Learn the constellations

The Celestron Rasa 8 Light Pollution Imaging Filter removes unwanted light pollution while preserving as much of the useful spectrum as possible

Optolong Moon and Skyglow Filter 2 inch 20410 innovative eyepiece design (8 elementsOptolong 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