Celestron 1.25-inch UHC/LPR Filter, Black

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.

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.

Los resultados de las fotografías con éste filtro son excelentes. Aún dentro de la ciudad es posible observar y fotografíar astros del espacio profundo con una reducción de contaminación lumínica considerable.

This UHC filter does its job at making nebulae have more contrast and more shape. This filter works with emission and planetary nebulae. It makes nebulae have about 30% more contrast. It is especially effective on the orion nebula and even bette on the M27 Dumbell nebula. The below reviewers clearly do not know how lpr filters work. It will not eliminate light pollution, just lessen the effect of it. I use this on my Orion XT10i Dobsonian (10 inch aperture). The uhc filter is more well rounded than an OIII filter. It is actually $20 cheaper on Amazon than on Celestrons own website.

Great pictures now that the light pollution is diminished!