Everwin Lunar Neutral density filter for telescope – 1.25 inch.
This neutral density filter transmits light uniformly across the visual spectrum.
It serves as an excellent filter to reduce glare and improve viewing comfort when observing the Moon with any quality telescope.
This filter may also be employed in the splitting of close double stars if one of the binary pair significantly exceeds the other in brightness.
The special purpose filter features a 13% total light transmission, enabling the excess glare of the moon to be transformed into greater detail, contrast & clarity.
Threaded for and compatible with standard 1.25 inch eyepieces and standard threaded star diagonals.