LPR Filters

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. LPR Filters are not used for lunar, planetary or terrestrial photography.

#94127A

#94126A

While blocking unwanted light, Celestron LPR Filters permit the transmis- sion 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. Some examples of objects that will show improved contrast are: the Orion Nebula, the Rosette Nebula, the North American Nebula, the Veil Nebula and the Helix Nebula.

The latest generation of Celestron LPR Filters is made of high quality, flat, polished optical glass. These units are not laminated! With over 40 layers of coating, these filters are state-

of-the-art. They’re also protected with a broadband anti-reflection coating to prevent ghosting and to improve contrast. They provide superior perfor- mance and contrast over competitive models.

LPR Filter – for 11/4" eyepieces [#94126A]

LPR Filter – for rear cell of Celestron’s C5, C8 or C91/4 [#94127A] (Fits on the reducer plate of C11 and C14 telescopes.)

93517, 93515, 93518 specifications

The Canon 93518, 93515, and 93517 are part of Canon's versatile series of ink cartridges designed to complement various printers in their lineup. These cartridges exhibit high efficiency and quality output, catering to both home and office users who demand reliability and superior print results.

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