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SVBONY Telescope Filter, 1.25" UHC Filter Improve Contrast for Telescope | Optical Glass Lens, Aluminum Frame, Astrophotography Filter, Light Pollution Filter Nebula Filters, Telescope Accessories

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Availability: In Stock.
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Arrives Friday, Jul 31
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Size: 1.25 inch


Features

  • UHC filters or light pollution reduction filters are designed to selectively reduce the transmission of certain wavelengths of light;especially those produced by artificial light
  • Sky background is darker;and contrast of emission nebulae are noticeably improved;the perfect filter for viewing nebula from light polluted skies;or for boosting the contrast of nebula from dark sky sites
  • Due to its ability to produce exceptionally sharp and clear images;this UHC filter is considered one of the most popular astronomy accessories;it can be used not only for celestial observations but also for astrophotography
  • 1.25'' barrel diameter simply attach to eyepiece cased in a sturdy transparent case;standard filter thread for 1.25" eyepieces and other accessories
  • Optical glass lens;aluminum frame;significantly reduces light pollution;great for city and suburban observation

Description

If you're not sure if a light pollution filter will benefit you or not (and it probably will), this SVBONY UHC Filter is a relatively inexpensive way to find out. Best of all, once you have it you'll probably feel no need to pick up a pricier one since this one will likely meet all of your needs. Basically, it works by darkening the background so you can see more nebulosity that would otherwise be too faint. This filter allows one to really see small planetary nebulae that would otherwise be washed out by the background, such as the M42 Nebula, the Dumbbell Nebula, and the Lagoon Nebula. It helps with finding the little planetary nebulae because it dims everything but the nebula, i.e. you can look at the same spot with and without the filter, and with the filter in place the stars are dimmed somewhat but the nebula isn't. It works well at both low and high powers. Selectively reduce the transmission of certain wavelengths of light Comes in a beautiful clamshell snap-on plastic case with foam inserts Excelent Light Pollution Filter. However, it does cause a halo. If you turn down the exposure it does fade or fade enough to be noticeable. If no light difference The reason may be that the spectrum of the light source and the spectrum of the light filter have overlapping conflicts; The reason may be that the spectrum of the light source and the spectrum of the light filter have overlapping conflicts; You can change the environment to test if there is any change (Better on 8-inch telescopes) SV503 Observation Kit SV305C Pro Camera SV503 70Telescope SV550 APO Telescope SV503 102ED Telescope Color Correction Filter SV705C Telescope Camera Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store

Brand: SVBONY


Material: Aluminum


Photo Filter Thread Size: 31.75 millimeters


Coating Description: Multi Coating


Photo Filter Effect Type: Enhancing


Water Resistance Level: Not Water Resistant


Photo Filter Factor: 31.75 x


Product Dimensions: 3.15"L x 3.15"W


Photo Filter Size: 31.75 millimeters


UPC:


Thread Size: 31.75 millimeters


Coating Description: Multi Coating


Special Effect: Enhancing


Water Resistance Level: Not Water Resistant


Photo Filter Factor: 31.75 x


Enclosure Material: Aluminum


Screen Size: 1.25 inches


Color: BLACK


Compatible Devices: Telescopes


Media Type: ProductImage


Viewfinder Type: optical viewfinder


Item Dimensions L x W: 3.15"L x 3.15"W


Photo Filter Size: 31.75 millimeters


Item Weight: 40 g


Brand: SVBONY


UPC: 714559977538 609378744273


Manufacturer Part Number: FUSF9131A


Number of Pieces: 1


Built-In Media: 1 X SVBONY UHC FILTER


Manufacturer: SVBONY


Model Number: FUSF9131A


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Nice filter for observing nebulae
Size: 1.25 inch
I had purchased the SV Bony UHC filter some time ago, but it sat in my drawer where I keep my eyepieces and other astronomy equipment. Last night was clear for the first time in over a month so I decided to give it a try. I observed several planetary nebulas first without the filter and then with the UHC filter. Wow what a difference it made. I live in the suburbs of a large city and the light pollution is pretty bad. The filter really helps the faint nebulas to pop into view. I still had to use averted vision to get the best view, but the filter made it so much easier to see details that I couldn’t see before. I can’t wait for the next clear night to use it. ... show more
Reviewed in the United States on June 15, 2026 by Ron S.

  • Pleasantly surprised for visual observations, excellent budget performer
Size: 1.25 inch
This broadband (50nm) UHC works well and has allowed me to view nebula (other than M42 / Orion Nebula) for the very first time from my light polluted backyard. I never thought I would be able to detect nebula from my backyard, where I do most of my visual observing using 8" and 10" F5 dobs. I'm in a red/white light pollution zone which is considered "Bortle 8" aka "can't see ****, captain". This filter hits well above its weight and is comparable to a more expensive Optolong UHC filter. Even with most of my city using LED street lights, whose light pollution is harder to filter out, this filter performed exceptionally and allowed me to detect nebulosity in Scorpius last night. The nebulosity was faint, but it was absolutely there. I didn't need to use averted vision or any other aids to detect it. With visual observing, you can't expect bright Hubble views albeit I suspect this filter would work exceptionally well for astrophotographers, who will be able to achieve great results with this filter + long exposures. The fact that I could visually detect any nebula at all that wasn't M42 in Orion makes this worth the measly $20 paid. Members of a popular astronomy forum have sent the SVbony UHC filters out to Lumicon- one of the top optics and filter labs- and it revealed that this filter is virtually identical in performance to Optolong UHC filter and may even be the same thing. The Optolong is well regarded and sells for $80; a $20 SVbony performing the same as a filter that is 4X as expensive is a great deal. The price and the performance of this makes it a must have filter if you don't have one. I'm not a fan of filters as I find the price:performance underwhelming for visual observing, but this filter hits all the right notes. I will likely buy SVbony's 2" version of this filter, I like its performance enough that I want it available for my 2" wide field EPs. I wish SVbony made an OIII; I'd buy it in a heartbeat if it performed as well as this UHC. ... show more
Reviewed in the United States on May 29, 2019 by Michael M.

  • Essential for planet viewing
Size: 1.25 inch
I am still very much a novice astronomy hobbyist and learning as I go - but this this filter has been a big help getting those nice planet images even in surburbia
Reviewed in the United States on May 2, 2026 by Sci_fi_fanatic

  • Happy with purchase
Size: 1.25 inch
I have a 4.5" (114mm) f/4 Zhumell Tabletop Dobsonian, that I've been using for several months. Last night we had clear skies, but 6" of snow cover reflecting all the Christmas lights back up into the sky--so the light pollution was substantial. However, since the moon was not out the seeing was pretty good, which made it a good time to test this little Svbony UHC filter! In relatable terms: the sky was dark enough to see the Pleiades and the Orion Nebula with the naked eye (the latter requiring judicious use of indirect peripheral vision)--but not clear enough to really make out the Milky Way. Despite the imperfect conditions, I was actually startled when I first focused on the Pleiades... Everything wasn't just shades of grey--I could see blue! I've been able to see red and yellow stars previously (you can even make out the difference with the naked eye) but the Pleiades just popped with blue! It was a memorable experience, and really quite moving. I won't forget it. The Orion Nebula was similarly stunning, the contrast was excellent and the color beautiful. ...Long story short, I spent an hour (possibly more) in the cold snow mesmerized by GOD's wonderful creation! Well Done SVBONY! ... show more
Reviewed in the United States on January 6, 2022 by CowsEatGrass

  • Works and works well
Size: 1.25 inch
As far as images I am really surprised at how well this works. From Bortle 6-7 on the bright emission nebula in orion, it helped bring out more color and cut down the orange glow (only a single sub before the clouds came). For visual use I didn't notice much difference but to be fair when I tested it visually I was in bortle 4 to 5. I imagine it helps more, the more light polluted your skies are. ... show more
Reviewed in the United States on December 29, 2024 by Nick Meyer

  • Lens
Size: 1.25 inch
Good lens
Reviewed in the United States on October 18, 2025 by James

  • Quality Filter
Size: 1.25 inch
It certainly made some difference, but with all of the LED lighting there is just no filter that can help.
Reviewed in the United States on December 30, 2025 by Bill J.

  • Filtro Telescopio
Size: 1.25 inch
Excelente, funciona de maravilla
Reviewed in the United States on December 14, 2025 by Santos

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