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This model of Celestron Telescope Accessories is discontinued and no longer available. Please, choose from our wide selection of Bushnell Telescope Accessories, Meade Telescope Accessories, TeleVue Telescope Accessories, and other Telescope Accessories on our site.
Celestron
Telescope Light Pollution Reduction (LPR) Filters are designed to
selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury, and both high and low pressure sodium vapor lights. In addition, they block unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. sky glow). As a result, Celestron LPR Filters darken the background sky, making deep-sky observation and photography of nebulae, star clusters and galaxies possible from urban areas.
While blocking unwanted light, Celestron LPR Filters permit the transmission of more desirable wave-lengths. The wavelengths
included are hydrogen alpha, hydrogen beta, doubly ionized oxygen and singly
ionized nitrogen. This will improve your viewing of emission nebulae, both from
urban and rural settings.
Package Contents:
Celestron Telescopes LPR Filter Model A (for 1-1/4 eyepieces)