Description

This neutral density filter uses optical glass to transmit light consistently across the entire visual spectrum. Anti-reflection coatings having been applied on both sides.

It is ideal for reducing glare when observing the Moon with various size telescopes and under different magnifications, thus significantly increasing the level of detail. The filter may also be used to split close double stars where one of the binary pair is significantly brighter than its companion.

Recommended for telescopes above 100mm in aperture.