Celestron UHC (Ultra High Contrast) Light Pollution Reduction 48mm Filter (Fits 2" Eyepieces)

Celestron UHC (Ultra High Contrast) Light Pollution Reduction 48mm Filter (Fits 2" Eyepieces)

Celestron UHC (Ultra High Contrast) Light Pollution Reduction 48mm Filter (Fits 2" Eyepieces)

B&H # CEUHCF2 MFR # 94124
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Product Highlights

  • Reduces Transmission of Wavelengths of Artifically-Produced Light
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You Pay: $79.95

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  • 1Description

LPR (light pollution reduction) filters are designed to selectively reduce transmission of certain wavelengths of light, specifically those produced by artificial light.  These include mercury vapor, high & low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emissions in our atmosphere.  The UHC LPR filter has improved contrast over the typical broadband filters, giving darker background skies and noticeably improved contrast of emission nebulae.  The advanced coatings enable and impressive 97% total transmission across the entire bandpass, with total blockage of prominent light pollution lines.  It is a perfect filter for viewing nebula from light polluted skies as well as for boosting the contrast of nebula from dark sky sites.

Multilayer, plasma-assisted and Ionbeam hardened dielectric coatings yield supreme durability
UPC: 050234941242
In the Box
Celestron UHC (Ultra High Contrast) Light Pollution Reduction 48mm Filter (Fits 2" Eyepieces)
  • 1-Year Warranty
  • Table of Contents
    • 1Description
    Packaging Infobzytwdrars
    Package Weight 0.05 lb
    Box Dimensions (LxWxH) 2.4 x 2.4 x 0.6"
    UHC (Ultra High Contrast) Light Pollution Reduction 48mm Filter (Fits 2" Eyepieces) is rated 3.3 out of 5 by 4.
    Rated 3 out of 5 by from Not as great as I thought it would be I was expecting a wow experience but the detail in Nebula from a moderatly light poluted sky was not that much better than my existing narrowband filter.
    Date published: 2010-03-13
    Rated 4 out of 5 by from Reduce skyglow in telescope I have a Celestron CPC 1100 telescope. I live in fairly rural area (no street lights), however there is still 'skyglow' from neighbors, etc. I screw this filter onto my 2 inch eyepiece, and it increases the contrast for those dim nebulae, etc. I tried viewing Jupiter with it, but it caused discoloration (this was expected).
    Date published: 2012-02-19
    Rated 1 out of 5 by from Caveat emptor! Useless piece of glass! Bought this product for my Celestron CPC 925 with 31mm Luminos eyepiece. I thought it will make all the difference in my backyard viewing of DSOs (as is represented by the product's description) in a fairly light polluted area about an hour drive from NYC. Results have been consistently disappointing. My eyepiece is better off without it! This UHC (Ultra High Contrast) LPR should be renamed Ultra Hype Contrast. Very disappointed!
    Date published: 2013-07-13
    Rated 5 out of 5 by from It works Not sure why some say it doesn’t work well. It does dim stars, but darkens the background sky to bring out nebulosity. This is my first Celestron product, and it works as it’s supposed to. I hardly think Celestron would put out a piece of junk. I tested the 2” UHC/LPR filter on my AR127, using a 5x Powermate and 40mm and 25mm Plossls to view M42 (Orion nebula). It brought out very noticeably more nebulosity even through a thin veil of cloudy haze a few nights ago. I live 30 miles east of Los Angeles in a light-polluted suburb. Orion was high in the sky and I could barely make out the belt of the constellation. I put the filter on my diagonal (telescope end), and really magnified the image with the Powermate. The high magnification blurred the stars somewhat, but I was interested in seeing the nebula. Actually, the filter is for use with my DLSR (Canon T3) and Canon HD camcorder for EAA (electronically-assisted astronomy). I haven’t been able to use the filter for EAA yet, but the view should be better through a camera sensor than by sight directly. This is because the effects of the narrowband, light pollution reducer filter will be able to allow me to use camera settings that were made ineffective by the light pollution (e.g. at ISO 3200 or 6400). The quality at this price earns 5 stars from me. Those with unrealistic expectations should go look through various filters before making a purchase. This can be done with friends who have filters or at stargazing parties. I didn’t expect a wow-factor with this filter, but was very pleased with its result so far. Thanks, B&H!
    Date published: 2017-12-11
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