Our 2'' 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 Vapor, And Both High And Low Pressure Sodium Vapor Lights And The Unwanted Natural Light Caused By Neutral Oxygen Emission In Our Atmosphere (I.E. Sky Glow). The New Ultra High Contrast (Uhc) Lpr Filter Has Improved Contrast Over The Typical Broadband Filters. Sky Background Is Darker, And Contrast Of Emission Nebulae Are Noticeably Improved. The Advanced Technology Coatings Enable The Filter To Achieve An Outstanding Transmission Of Over 97% Across The Entire Bandpass, With Total Blockage Of Prominent Light Pollution Lines. The Perfect Filter For Viewing Nebula From Light Polluted Skies, Or For Boosting The Contrast Of Nebula From Dark Sky Sites. In Addition To It'S Optimum Spectral And Optical Characteristics, The Uhc/Lpr Filter Offers Important Features That Set It Apart And Result In The Highest Quality Celestial Views: The Multi-Layer Dielectric Coatings Are Plasma Assisted And Ionbeam Hardened Using The Latest Technology For Durability And Resistance To Scratching. Improved Transmission Translates To Maximum Image Brightness And Contrast. Users Of Smaller, 4''-11'' Telescopes Will Especially Appreciate The High Efficiency, And Larger Scope Users Will Love The Rich Star Fields And Detailed Subtle Nebular Shadings That Are Left Intact. The High Transmission, Sharp Cutoffs, And More Moderate 60Nm Passband Of The Uhc/Lpr Filter Retains A More Natural View, Yet Significantly Boosts Overall Contrast. Imagers Will Appreciate The Broader Bandpass And Inclusion Of An Extremely Efficient H-Alpha Passband (656Nm).
⚠️ WARNING (California Proposition 65): This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Q: What are the dimensions of the Celestron UHC/LPR Filter?A: The dimensions of the Celestron UHC/LPR Filter are two point five inches in length, zero point five inches in width, and two point five inches in height.
Q: What material is the Celestron UHC/LPR Filter made of?A: The Celestron UHC/LPR Filter is made of high-quality glass, designed for optimal optical performance.
Q: What is the model number of the Celestron UHC/LPR Filter?A: The model number of the filter is nine four one two four - CGL.
Q: How do I use the Celestron UHC/LPR Filter with my telescope?A: To use the filter, simply screw it onto the eyepiece of your telescope to enhance celestial viewing.
Q: Is the Celestron UHC/LPR Filter suitable for all telescope sizes?A: Yes, the filter is suitable for telescopes ranging from four inches to eleven inches in diameter.
Q: Can I use the Celestron UHC/LPR Filter for astrophotography?A: Yes, the filter includes an efficient H-Alpha passband, making it ideal for astrophotography.
Q: How should I clean the Celestron UHC/LPR Filter?A: To clean the filter, use a soft, lint-free cloth and lens cleaner specifically designed for optical glass.
Q: Is the Celestron UHC/LPR Filter resistant to scratching?A: Yes, the filter features multi-layer dielectric coatings that are ion beam hardened for scratch resistance.
Q: What is the passband width of the Celestron UHC/LPR Filter?A: The passband width of the filter is sixty nanometers, providing a natural view while boosting contrast.
Q: What types of light does the Celestron UHC/LPR Filter reduce?A: The filter reduces light pollution from sources such as mercury vapor and sodium vapor lights.
Q: What is the primary benefit of using the Celestron UHC/LPR Filter?A: The primary benefit is improved contrast and darker sky backgrounds, enhancing the viewing of emission nebulae.
Q: Is the Celestron UHC/LPR Filter easy to install?A: Yes, the filter is designed for easy installation on standard telescope eyepieces.
Q: Does the Celestron UHC/LPR Filter improve viewing from light-polluted areas?A: Yes, it is specifically designed to enhance viewing from light-polluted skies.
Q: What color is the Celestron UHC/LPR Filter?A: The filter is black, designed to minimize reflections and enhance the viewing experience.
Q: How does the Celestron UHC/LPR Filter enhance celestial viewing?A: It enhances viewing by selectively filtering out unwanted wavelengths, resulting in clearer and more detailed celestial images.
Q: What brand manufactures the UHC/LPR Filter?A: The filter is manufactured by Celestron, a well-known brand in the field of astronomy.
