Gosky 1.25 Crystalview Moon Filter for Telescope Eyepiece - Standand 1.25inch Filter Thread - Metal Frame - Optical Glass - Enhance Lunar Planetary Views - Eliminate the Street Light Smog

Color:1.25' Crystalview Moon Filter Gosky 1.25' Crystalview Moon Filter for Telescope Eyepiece Designed to enhance Lunar & Planetary views, as well as being a useful light pollution filter. High quality metal frame, with padded hard case. Superb value for money. Specifications: Program type : Crystalview moon Size:1.25' Package Include: 1x filter 1xsturdy plastic case P.S: How to use an 1.25' filter? There is 1.25 filter threads on the end on the filter? and there is always filter threads on the end of 1.25' eyepiece, diagonal and many other accessories. You can simple attach the accessories by 1.25 filter threads(as is shown in the picture).