This is an excellent neutral density filter for viewing the moon, reducing intensity and increasing contrast. It has 50% transmission and adds no greenish cast or other color. The filter housing is made of anodized and engraved aluminum for durability and ease of use.
Vernonscope Mounted Glass Filters feature 1" clear-aperture optical glass. Numbers are engraved on the mounting to correspond with those of Kodak Wratten series or commonly used camera designations. The mountings are edge-knurled and threaded to fit the bases of BRANDON oculars and DAKIN Barlows. Vernonscope Mounted Glass Filters cut glare, provide superior contrast, improve definition and reduce eye fatigue.
Each filter comes in its own plastic case for protection.