Celestron UHC/LPR Filter 1.25" (94123)
$99.95
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Celestron UHC/LPR Filter 1.25" (94123)
$99.95
High Contrast
Darker sky background view
Premium Coatings
Plasma assisted ionbeam hardened
97% Transmission
Maximum image brightness performance
Celestial View EnhancerSharper nebular contrast and clarity
Upgrade your telescope setup with the 1-1/4" Light Pollution Reduction (LPR) Filter, engineered to selectively block artificial glare while maximizing deep-sky visibility. Ideal for urban and suburban astronomy, this ultra high contrast UHC filter delivers a significantly darker sky background to reveal hidden details in emission nebulae.
Advanced Skyglow FiltrationUnmatched visual and imaging optics
The 1-1/4" Light Pollution Reduction (LPR) Filter utilizes cutting-edge multi-layer dielectric coatings that are plasma-assisted and ionbeam hardened for maximum scratch resistance and longevity. Designed to combat mercury vapor and sodium streetlights as well as natural atmospheric sky glow, this optical filter achieves over 97% peak transmission across its 60nm passband. Whether you are observing with a small 4-inch reflector or a large light-bucket telescope, this high-efficiency accessory enhances nebular subtle shadings without losing faint star fields. Astrophotographers will also benefit from its inclusion of the critical 656nm H-Alpha emission line for rich deep-sky exposure capturing.
Filter Technical DetailsEssential optical and physical specifications
Filter Type
Ultra High Contrast (UHC) LPR Filter (filter)
Barrel Size
1.25 Inches
Peak Transmission
Over 97%
Passband
60nm Bandpass
Coating
Plasma-Assisted Ionbeam Hardened Dielectric
H-Alpha Transmission
656nm Included
Target Compatibility
4" to 11" Telescopes
Primary Use
Visual Observation and Astro-Imaging
Key Optical FeaturesSpecialized performance for visual observers
Selective BlockingSuppresses sodium and mercury vapor light pollution lines
Superior TransmissionExceeds 97% throughput across key bandpass wavelengths
Ionbeam HardenedPlasma-assisted dielectric coatings ensure scratch resistance
H-Alpha ReadyPasses 656nm bandpass for advanced astrophotography
Enhanced ContrastDarkens sky background while preserving nebular detail
Universal ThreadingFits standard 1-1/4" astronomical eyepieces and diagonals
Frequently Asked QuestionsEverything you need to know
How does the 1-1/4" Light Pollution Reduction (LPR) Filter improve telescope viewing?
The 1-1/4" Light Pollution Reduction (LPR) Filter selectively blocks light pollution wavelengths emitted by sodium and mercury vapor streetlights, darkening the sky background and making emission nebulae stand out with greater contrast.
Will the 1-1/4" Light Pollution Reduction (LPR) Filter work with smaller telescopes?
Yes, the high efficiency and 97% optical transmission of the 1-1/4" Light Pollution Reduction (LPR) Filter make it especially effective on smaller telescopes ranging from 4 to 11 inches without dimming the view excessively.
Is the 1-1/4" Light Pollution Reduction (LPR) Filter suitable for astrophotography?
Absolutely. The 1-1/4" Light Pollution Reduction (LPR) Filter includes the 656nm H-Alpha passband, making it an excellent choice for imaging faint nebulae from light-polluted urban or suburban locations.