Metal filter cell threads directly into the 2- inch barrel of your telescope eyepiece
This ND96 neutral density filter allows 25 percent of the visible light to pass through
Perfectly neutral color will not alter the natural color of the Moon
Waterproof and Fogproof with 82 Degree Visual Field for Sparpreis: Experience can be as beautiful and spacious; a glance through the 85 degree eyepiece; After observing through this eyepiece you do not see the edge
Stable Quality Waterproof with Nitrogen Gas: The eyepiece looks elegant anodizing and makes in each telescope a good figure; it's also waterproof and nitrogen-filled cleaning the housing and the lenses with water riding optical elements of grease and dirt