This premium Moon filter will reduce the unwanted glare from the Moon, maintaining your viewing comfort without loss of resolution. With 25% light transmission this version will suit any astronomical telescope equipped with a 1.25" focuser.
These high quality anodized aluminium, optical glass variable polarising filters reduce the amount of light entering your eyepiece. You can progressively dim the view when observing a bright object, such as the Moon or certain planets
This 1.25in filter consists of two joined polarized filters that provide continuously from about 2% to 40% as the rotating filter is adjusted. Great for lunar viewing without ruining your dark adaptation from staring at a bright image.