Celestron 1.25" UHC / LPR Filter

Celestron
SKU: CNUHC1Q MFR: 94123
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List Price: $96.95

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$54.95
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About Celestron

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:

Celestron Features

  • 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)
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Questions about this item:

Shopper  will this fit a skyProdigy 90?
Steve B  Information on the Thousand Oaks Optical solar filters (for compatibility) can be found at the Thousand Oaks Optical website (can't post a link)
Isaac B  How does the filter attach to the telescope? Will it attach to any eye piece?
THOMAS R  Most (if not all) eyepieces have filter threads on the inside of the tube that goes into the telescope. This filter will fit the threads inside 1.25" eyepieces. If you want to make sure your eyepiece has the filter threads, just flip the eyepiece over and look into the "wrong" end. You should see the threads on the inside of the tube, right near the edge (you might need a magnifying glass to see them, though).
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