The Moon & Skyglow is a multi-bandpass filter transmitting a high percentage of light in the visual spectrum. The filter enhances contrast when observing brighter objects including the moon and planets. It also will suppress sky glow from artificial lighting and background glow reflected when the Moon is up. The filter has a mild effect of darkening the background of the night sky so that the fainter objects are more clearly seen contrasted against the blackness of space. The filter will fit all
STANDARD 2INCH FILTER THREAD: The 2inch Moon and Skyglow Filter is simply screwed into the eyepiece thread; also; the filter will fit all standard sized 2inch eyepieces and accessories; it is threaded on both sides for stacking with other filters if necessary
More Than Normal Moon Filter: This premium Moon and Skyglow Filter is much higher quality than similar products; a particularly disruptive factor during observation is the illumination of street lights
100 Percent Brand New and High Quality: Multi-coated 2 inch 80 degree F30mm UWA telescope eyepiece; the Ultra-Wide 80 Degree Eyepieces are equipped with plastic case; which can better protect eyepieces and against dust than the cap
Barrel Size: 2 inch this superb ultra wide angle eyepiece has 80 degree field of view