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.)

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Canon 93515, 93518, 93517 manual LPR Filters
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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.

One of the standout features of these cartridges is the use of Canon's advanced dye-based ink technology. This innovation ensures vibrant colors and sharp text, making them ideal for everything from photo prints to professional documents. The ink is designed to resist fading over time, allowing prints to retain their vivid colors longer, which is crucial for preserving memories in photo albums or producing long-lasting marketing materials.

Additionally, the Canon 93518, 93515, and 93517 cartridges are engineered for easy installation and seamless operation with compatible Canon printers. Their user-friendly design means that even those who may not be tech-savvy can quickly replace cartridges without hassle. This convenience minimizes downtime and increases productivity, particularly in busy office settings.

These cartridges are also recognized for their compatibility with a wide range of Canon printer models, making them a versatile choice for many users. The 93518 cartridge, known for its high yield, is especially beneficial for frequent print jobs, while the 93515 and 93517 options offer different capacities suited to varying printing needs. By selecting the right cartridge, users can optimize their printing costs effectively.

Moreover, sustainability is increasingly becoming a priority in the printing industry, and Canon has taken steps to address this with these cartridges. The company promotes recycling programs, encouraging users to return used cartridges for proper disposal and reuse. This initiative not only contributes to environmental conservation but also helps users to be more conscious of their ecological footprint.

Overall, the Canon 93518, 93515, and 93517 cartridges combine performance, convenience, and sustainability, making them an excellent choice for anyone looking to achieve high-quality prints while maintaining efficiency and supporting environmental efforts. With these cartridges, users can confidently rely on Canon's reputation for excellence in printing technology.
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