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Celestron 1.25" Ultra High Contrast (UHC) Light Pollution Reduction Filter - 94123

SKU: CEL-94123

This item is in stock and typically ships in 1 day or less.

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List price: $79.95

Our price: $69.95

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Celestron 1.25" UHC Light Pollution Reduction Filter




The Celestron 1.25" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light sources. 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 ion beam 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 60 nm passband of the UHC/LPR filter retains a more natural view, yet significantly boosts overall contrast. CCD camera imagers will appreciate the broader bandpass and inclusion of an extremely efficient H-Alpha (excited-hydrogen emission passband at 656 nm).

Description
Description

Celestron 1.25" UHC Light Pollution Reduction Filter

The Celestron 1.25" Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light sources. 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 ion beam 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 60 nm passband of the UHC/LPR filter retains a more natural view, yet significantly boosts overall contrast. CCD camera imagers will appreciate the broader bandpass and inclusion of an extremely efficient H-Alpha (excited-hydrogen emission passband at 656 nm).

Specifications
Specifications
Model Number 94123
Single Filter, Set, or Accessory Single Filter
Filter Type CLS/LPR
Filter Size 31.75 mm (1.25")
Filter Shape Round
Filter Insert Style Threaded
Warranty Two (2) Years
What's in the Box?
What's in the Box?
  • Celestron Ultra High Contrast (UHC) Light Pollution Reduction 1.25" Filter
  • Celestron 1.25" Ultra High Contrast (UHC) Light Pollution Reduction Filter - 94123
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