UHC/LPR Filter 2"
$134.95
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UHC/LPR Filter 2"
$134.95
High Contrast
Dramatically Darkens Sky Backgrounds
97% Transmission
Maximum Brightness Across Bandpass
Ionbeam Hardened
Durable Scratch Resistant Coating
60nm Passband
Preserves Natural Celestial Views
2 Inch Thread
Fits Standard 2 Eyepieces
H-Alpha Ready
Includes 656nm Spectrum Line
Celestial Clarity AmplifiedUnveil Hidden Nebular Details Easily
The 2" UHC Light Pollution Reduction Filter is an essential telescope accessory engineered to isolate emission nebulae while blocking unwanted light pollution from mercury and sodium vapor streetlights. By dramatically darkening the natural sky background, this high-performance 2" LPR filter boosts contrast to deliver breathtaking visual and astrophotography views through both small and large aperture telescopes.
Advanced Astronomical FiltrationPrecision Coatings for Deep Sky
Designed for visual observers and astrophotographers alike, the 2" UHC Light Pollution Reduction Filter features advanced plasma-assisted, ionbeam-hardened multi-layer dielectric coatings for maximum scratch resistance and optical longevity. Delivering an outstanding transmission rate exceeding 97% across its moderate 60nm passband, this telescope filter preserves rich star fields and subtle nebular details while blocking prominent artificial light pollution lines. Furthermore, its built-in high-efficiency H-Alpha passband (656nm) makes it a superb choice for capturing faint deep-sky nebulae under urban or suburban light-polluted skies.
Technical SpecificationsKey Precision Optical Dimensions
Filter Type
Ultra High Contrast (UHC) LPR (filter)
Filter Size
2 Inch Threaded
Passband Width
60nm
Peak Transmission
>97% across bandpass
H-Alpha Wavelength
656nm Passband
Coating Technology
Plasma-assisted Ionbeam Dielectric
Recommended Telescope Aperture
4-inch to 11-inch+ Scopes
Compatibility
Standard 2-inch Eyepieces & Diagonal Adapters
Key Optical FeaturesDesigned for Maximum Sky Contrast
High Contrast TransmissionDelivers over 97% peak transmission across the active bandpass
Durable CoatingsPlasma-assisted Ionbeam hardened layers resist scratching and wear
Broadened H-Alpha AccessIncludes 656nm passband optimized for deep sky imaging
Natural Spectral ViewModerate 60nm passband retains natural star color balance
Light Pollution BlockageCuts high/low pressure sodium and mercury vapor glow
Versatile Telescope UseIdeal for apertures ranging from 4-inch to 11-inch scopes
Frequently Asked QuestionsEverything you need to know
What does the 2" UHC Light Pollution Reduction Filter do?
The 2" UHC Light Pollution Reduction Filter selectively blocks artificial light wavelengths, such as mercury and sodium vapor streetlights, while passing key emission wavelengths from nebulae to significantly boost image contrast.
Will the 2" UHC Light Pollution Reduction Filter work on small telescopes?
Yes, the high 97% transmission rate of the 2" UHC Light Pollution Reduction Filter makes it highly effective on smaller telescopes ranging from 4 to 11 inches in aperture without excessively darkening the image.
Is the 2" UHC Light Pollution Reduction Filter suitable for astrophotography?
Absolutely, the 2" UHC Light Pollution Reduction Filter includes an extremely efficient H-Alpha (656nm) passband, making it an excellent filter for deep-sky celestial imaging.
How durable is the coating on the 2" UHC Light Pollution Reduction Filter?
The 2" UHC Light Pollution Reduction Filter features multi-layer dielectric coatings that are plasma-assisted and Ionbeam hardened for exceptional scratch resistance and long-term optical durability.