Neutral Density ND Filter; Giving great versatility in changing light. Reduces the amount of light without effecting color balance; Perfectly neutral color will not alter the natural color of the Moon
High-quality optical lenses;Made by completed professional optical glasses; Multi-layer coating;ND8 filter transmits only 12.5% of the incoming light;It has outstanding image sharpness and perfect colour neutrality
1.25'' barrel diameter;Metal filter cell threads directly into the 1.25 inch barrel of your telescope eyepiece;Useful for different caliber astronomical telescopes through which the light of the Moon can be extremely overwhelming
Great Filter Frames;Filter Frames made by aluminum alloy; the serrated design of the edge of the frame makes it easy to install;Increase surface durability
Extend shooting time;such as wanting to shoot misty flowing water in very bright places; Exposure time can be greatly extended to blur pedestrians or even completely