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Astromania 2" UHC filter suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants. Not only useful at light-polluted sites; the contrast is also increased at dark sky sites. Many objects only first become visible at all when using an UHC filter.
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Astromania 2" UHC (Ultra High Contrast) Filter - Good and Trustworthy Partner
Michael Smithsonian
2025-08-23 15:25:19
This is, so far, my favorite purchase for my new telescope. I can see the Orion nebula now (which I could not see in my light polluted sky) previously. It is very faint, but I can see it now! One of my unexpected favorites to look at with this new filter is Betelgeuse because I can see it and its color so much better now.The filter came with a very nice, sturdy, case as well.
Mark Irby
2025-07-08 11:54:12
Nice addition to my telescope accessories
David Brock
2025-06-28 16:44:22
Performance compares very well with the Lumicon UHC.Only downside is it has a plastic housing so some careneeded with handling.
James Houghton
2025-06-12 16:27:06
So I will admit up front I do not have scientific equipment to measure light frequency pass-thru and fall-off. What I do have is a repeated set of deep sky images that are true to color without some of the annoying man made light pollution. What's interesting is I have a Canon camera insert version of this that seems to make the images more pink and purple, as if it is blocking more of the green.I also have a CLS filter, but I prefer the UCH as it seems to do a better job for me.
T G
2025-05-29 13:46:09
Viewing through a 6' dob, live in a Bortle10 area, and waited for the moon to "set" at 3:30am. Viewing in Sagittarius,viewing due South, 10 miles North of Charlotte. Went straight to Lagoon Nebula. Ive tried a general LPC (light pollution filter) in the past which helps. However with the LPC, I was only able to make out half of it. With the UHC, I was able to see both halves, and the dark lane through the middle. Had a similar experience with the Swan/Omega nebula. In the past could only make out the "body" of the Swan. Last night I was able to view the "head" as well as wisps of clouds, off the tail. I have never been able to make out the Trifid or Eagle Nebula until last night. Both were very faint and could make out very little detail. I have no comparison to other UHC filters. However if you are on a budget like myself and cant spend $100 on a filter, I feel like you will enjoy this filter. Very pleased with the purchase and details I was able to see.
cole
2025-05-15 12:16:38
Keep your expectations realistic for visual astronomy. I have an 8" Dobsonian and live in a moderately light-polluted area (Bortle 4/5), so I can already resolve rather faint details without any filtration. When looking at M42 (the Orion Nebula) there is significantly better contrast and definition on dust lanes, and when using averted vision there is a moderate increase in the amount of nebulosity visible. Keep in mind that any filter will decrease the overall brightness of your target, so allow your eyes to adjust before making any judgments.
Jinx
2025-02-15 11:59:58
I didn’t notice any additional clarity viewing from a moderately-light-polluted area. It’s not worth the change in color for me. I’d rather get the view that’s practically the same and not tinted. I realize these filters aren’t meant for looking at the Moon, but I included a picture of the Moon with and without the filter a couple minutes apart for reference. If I’m looking at a nebula, I want to see the real colors the way the Lord made them. I’ll buy a better UHC that doesn’t tint my view.
Sci Researcher
2025-01-10 13:45:59
If you have realistic expectations this a great budget filter to try out before going on to others, best on bright nebula and dark sites. Made a noticeable contrast difference on Saturn Nebula and gave hints of nebulosity of Lagoon Nebula under heavy urban light pollution but dims light as do all filters. Would buy again.
DT
2024-12-12 12:34:31
Esperaba un poco más en el contraste pero está bien, nada del otro mundo, ligeramente costoso para lo que ofrece
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