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.
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Celestron 94123 Overview
Multilayer, plasma-assisted and Ionbeam hardened dielectric coatings yield supreme durability
UPC: 050234941235
Celestron 94123 Specs
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Packaging Info
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Celestron 94123 Reviews
Helps reduce artificial light around house.
By David
Rated 4 out of 5
Date: 2020-11-20
I have a street light in front of my house and this filter allowed me to still have a good view through the eyepiece of Saturn, Jupiter and the moon.
Not for a 60mm telescope
By Dennis
Rated 1 out of 5
Date: 2018-07-27
I couldn't see with it. It blocked too much light. I had to buy a different diagonal because it is threaded. I am going to return it. When I looked at Jupiter I couldn't see its moons, but when I removed the diagonal I could. Mars turned into 2 dots, red and blue.
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My old Celestar came with five Parks 1.25" ...
My old Celestar came with five Parks 1.25" filters, including their "ALP" (anti-light pollution) filter. My yard gets heavy light pollution, so I'd pay for a more expensive filter if I were sure it would give me much better performance. Any filter comparisons out there?
The Celestron filter is effective in light pollution situations. However, I cannot compare it to the filter that you already have and don't know if it will be any more reducing of light pollution in your yard. My suggestion is to buy the filter and compare. If not satisfied, there is an excellent and easy to use return policy for the products that you buy from B&H. Please click on the link to read the policy: https://www.bhphotovideo.com/find/HelpCenter/ReturnExchange.jsp
Date published: 2020-06-30