Celestron 94123 1.25-Inch UHC/LPR Filter (Black)

Description

LIGHT POLLUTION (LPR) FILTERS Designed to selectively reduce the transmission of certain wavelengths of light. IMPROVED TRANSMISSION Advanced technology coatings enable the filter to achieve a transmission of over 97 across the entire bandpass with total blockage of prominent light pollution lines. MULTI-LAYER DIELECTRIC COATINGS Plasma assisted and Ionbeam hardened using the latest technology for durability and resistance to scratching. OPTIMUM SPECTRAL AND OPTICAL CHARACTERISTICS The UHCLPR Filter 1.25 inch retains natural views, resulting in the highest quality celestial images. Review: Le filtre LPR, lui, est un filtre très performant au support parfaitement usiné en aluminium, et s'avère très utile en ciel profond pour les nébuleuses. Review: Dear fellow Astronomers I have been told that Astrophotography is a "rabbit hole", which you vanish down, with a lot of pounds/dollars on the way. So I don't do Astrophotograpy. However with the visual, you can always defend a few extra bits, if budget allows. I bought a lovely set of Celestron Eyepieces and filters (their box set). I am more than happy with them, then someone mentioned a filter that increases contrast and reduces light pollution ! I sighed heavily and looked into This product. A must-have, I thought,.... and still do, after trying it out. Firstly, you may see reviews, that comment on the "blue rinse" look to the images, but that is what filters do. You cannot delete (filter !) certain wavelengths, without enhancing the other wavelengths. Does it enhance contrast and detail, yes. Galaxies/Nebulea have become more obvious, when only tentatively there, without. This with my Celestron Nexstar C8. I have yet to thrash out how good the planets are, later this year. Expecting good things As to street light pollution, I think the filter may be better against Sodium Vapour Lamps, than modern day LED lamps. I had looked forward to downward-pointing LED street lights, for better observing. Out with the Sodium Orange/Yellow. Where I live, they are now, mainly intense blue/white LEDs now. It scatters, the same reason why the sky is blue . Worse ! I shall accept the small, yet noticeable, benefit that I have been given by this filter . I like it loads, however, only buy if you and your budget is/are fine with it. Everybody has different opinions.