--- product_id: 74800651 title: "Telescope Filter 2\" CLS Broadband Filter, Reduce City Light Pollution Suitable for Deep Sky Visual Astronomical Photography" brand: "svbony" price: "€ 92.60" currency: EUR in_stock: true reviews_count: 13 category: "Svbony" url: https://www.desertcart.pt/products/74800651-telescope-filter-2-cls-broadband-filter-reduce-city-light-pollution store_origin: PT region: Portugal --- # 0.1% artificial light pass-through 90% nebula emission transmission Ion-assisted durable coating Telescope Filter 2" CLS Broadband Filter, Reduce City Light Pollution Suitable for Deep Sky Visual Astronomical Photography **Brand:** svbony **Price:** € 92.60 **Availability:** ✅ In Stock ## Summary > 🌠 See the unseen, even in city lights! ## Quick Answers - **What is this?** Telescope Filter 2" CLS Broadband Filter, Reduce City Light Pollution Suitable for Deep Sky Visual Astronomical Photography by svbony - **How much does it cost?** € 92.60 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/74800651-telescope-filter-2-cls-broadband-filter-reduce-city-light-pollution) ## Best For - svbony enthusiasts ## Why This Product - Trusted svbony brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Engineering:** Planetary rotation coating system guarantees uniform transmission and optical density for unmatched contrast and clarity. - • **Seamless Compatibility:** Optimized for color CCD and unmodified DSLR cameras, perfect for both visual astronomy and astrophotography. - • **Urban Nightscape Mastery:** Suppresses 99.9% of city light pollution wavelengths, turning light-polluted skies into dark canvases for your telescope. - • **Crystal-Clear Deep Sky Views:** Unlock vivid nebula details with 90% transmission of key emission lines like Ha 656nm and OIII 500nm. - • **Built to Last, Built to Perform:** Ion-assisted deposition coating ensures scratch resistance and stable optical performance regardless of temperature shifts. ## Overview The SVBONY 2" CLS Broadband Filter is a precision-engineered optical accessory designed to dramatically reduce urban light pollution while enhancing the visibility of deep-sky nebulae. Featuring advanced ion-assisted deposition coatings for durability and temperature stability, it transmits 90% of key nebula emission lines and blocks 99.9% of artificial light wavelengths. Compatible with color CCD and DSLR cameras, this filter transforms light-polluted skies into rich, high-contrast celestial vistas, making it an essential tool for serious amateur astronomers and astrophotographers. ## Description Product description SVBONY Light Pollution Filter CLS Filter 2 inch enhances the visibility of deep-sky objects like nebulae by selectively reducing the transmission of light pollution wavelengths, specifically targeting both artificial light pollution and detrimental natural light. SvBony CLS Filter 2 inch Features 90% transmission of main nebula emission lines (i.e. Ha 656nm, OIII 496nm&500nm, SII672nm and H-beta 486nm). 0.1% transmission of off-band, specifically the major emission lines of artificial light pollution (i.e. Na 589nm, Hg 435nmand 578nm). CLS filter with wider pass-band than UHC filter 2 inch Light Pollution Filter for telescope is unbeatable for revealing nebulosity, for get superb views of the M42, Lagoon, Swan and other extended nebulae. CLS Light Pollution Filter Details Multi-layers anti-reflection coating Electron-beam gun evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching, as well as stability on CWL (central wavelength) no deviation affected by temperature change. Aluminum alloy process Process Black Anodized Finish Extinction Treatment to. Prevent Reflection Laser Engraving No Fading. CLS Filter out the brightening of the sky due to artificial light. As many celestial objects, such as nebulae, radiate at other wavelengths, a considerable increase in contrast can be achieved by this.The background sky appears darker and, all at once, faint details become visible. Package Includes Specifications Review: Great for deep sky photos! - This lens is great for light-filtration and deep sky photos Review: Works perfect! - Great cls filter! ## Features - Evaporation with Ion-assisted deposition coating technology for durability and resistance to scratching;as well as stability on CWL (central wavelength) no deviation affected by temperature change - Planetary rotation system offers precision and homogeneity of coatings ensuring high value on transmission of pass band and Optical density of off-band - 90% transmission of main nebula emission lines;such as Ha 656nm;OIII 496nm;500nm;SII672nm and H-beta 486nm - 0.1% transmission of off-band;specifically the major emission lines of artificial light pollution;such as Na 589nm;Hg 435nmand 578nm - Suitable for color CCD cameras and unmodified DSLR Urban optical filter can effectively suppress urban harmful light and improve the contrast of shooting target ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B079BWDRFC | | Audio Recording | No | | Best Sellers Rank | #20 in Telescope Filters | | Brand | SVBONY | | Coating Description | Multi Coating | | Compatible Devices | color CCD cameras, unmodified DSLR cameras, visual use | | Customer Reviews | 4.4 out of 5 stars 315 Reviews | | Enclosure Material | Optical Glass | | Has Self-Timer | No | | Item Dimensions L x W | 2"L x 2"W | | Manufacturer | SVBONY | | Manufacturer Part Number | FUSF9155B | | Material | Optical Glass | | Media Type | ProductImage | | Model Number | FUSF9155B | | Number of Pieces | 1 | | Photo Filter Effect Type | Enhancing | | Photo Filter Size | 48.5 Millimeters | | Photo Filter Thread Size | 48.5 Millimeters | | Screen Size | 2 Inches | | Set Name | Single Size | | Special Effect | Enhancing | | Thread Size | 48.5 Millimeters | | UPC | 609378745584 | | Viewfinder Type | optical viewfinder | | Warranty Description | We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** SVBONY - **Coating Description:** Multi Coating - **Material:** Optical Glass - **Photo Filter Effect Type:** Enhancing - **Photo Filter Size:** 48.5 Millimeters - **Photo Filter Thread Size:** 48.5 Millimeters - **Product Dimensions:** 2"L x 2"W - **Set Name:** Single Size - **UPC:** 609378745584 - **Water Resistance Level:** Not Water Resistant ## Images ![Telescope Filter 2" CLS Broadband Filter, Reduce City Light Pollution Suitable for Deep Sky Visual Astronomical Photography - Image 1](https://m.media-amazon.com/images/I/517vVGd8fWL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Inadequate responses still. eos 2000d has the same lens mount as others listed, why does it not fit?** A: Not familiar with the specifics of the EOS 2000D body's internals but since these clip-in filters mount inside the camera body I would expect it to fit this ASP-C chip body, unless Canon did something surprising with this model. The filters "ears" at the 4 and 8 o'clock postion that hold the filter in the camera body often need some "adjustment" to achieve a secure fit. **Q: Will this fit the Canon 5DsR camera body?** A: Dear customer , Thanks for your contact. No,this can't fit. For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win. If my reply still doesn't answer your question well or you want to know more details about this product,could you please contact us by message on Amazon? Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply. Best wishes ! Kelly **Q: I have canon 250d with sigma 18-35mm f1.8 art dc hsm and its not modify so its work with it?** A: Dear customer , Thanks for your contact. No,it could not. For accessories;we provide 2 months warranty;within 2 months;you can return for refund or replacement.If you have any other questions about warranty;please contact us freely;we will work with you win to win. If my reply still doesn't answer your question well or you want to know more details about this product,please contact us by message on Amazon. Because the customer's message can be seen in the first time on Amazon, and will solve the problem as soon as possible. Once I receive your response, I will try my best to answer your questions. Sincerely look forward to your reply. Best wishes ! Kelly **Q: Another question: will this work with my t6i and the tokina 10-18 2.8 and the tamron 70-200 2.8. sigma 150-600? i'd use these for photography, no ef-s** A: yes ,you can use,You can rest assured to buy, we provide one month no reason to return Kelly ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for deep sky photos! *by A***. on May 8, 2026* This lens is great for light-filtration and deep sky photos ### ⭐⭐⭐⭐⭐ Works perfect! *by B***N on November 3, 2025* Great cls filter! ### ⭐⭐⭐⭐ Good Filter for the Price *by U***D on June 1, 2021* Very decent filter for the price! When it comes to darkening light pollution, it does a decent enough job. It's also outstanding for defining nebulas, but where it is subpar is with face-on galaxies. The votes are visible but that's about it, side-on galaxies are fine though. ## Frequently Bought Together - SVBONY Telescope Filter 2 inches CLS Filter City Light Pollution Reduction Filter Broadband Filter Suitable for Deep Sky Visual Astronomical Photography - SVBONY Telescope Filter 2 inches UHC Filter for Observations of Deep Sky Objects Ultra High Contrast Filter Reduce Light Pollution - SVBONY Telescope Filter UV IR Cut Block Filter Infra Red Filter CCD Camera for Astrophotography Telescope UV Filter 2 inch Threads for DSLR Camera --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/74800651-telescope-filter-2-cls-broadband-filter-reduce-city-light-pollution](https://www.desertcart.pt/products/74800651-telescope-filter-2-cls-broadband-filter-reduce-city-light-pollution) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-23*