Celestron Polarizing Filter Set 1.25"

This set of two polarizer filters reduces reflected polarized light in the Earth's atmosphere and is designed to fit 1.25" focusers and eyepieces. These filters are often over looked by astronomers and birdwatchers, for terrestrial use the filter is very effective at reducing glare and reflections and for astronomy reducing glare from the Moon, Venus and bright stars. Polarizers should be part of every astronomer's and birdwatcher's hardware collection.

Also helpful for splitting binary stars by reducing glare and diffraction around the brighter star of the binary pair. On moon and planets it is invaluable for reducing irradiation and glare.


The effectiveness of the filters depends on several factors, including: the aperture and focal length of the telescope, the magnification being used, and seeing conditions.