--- product_id: 181328644 title: "Optolong L-Pro 1.25\" Mounted Round Filter" brand: "optolong" price: "€ 288.82" currency: EUR in_stock: true reviews_count: 4 category: "Optolong" url: https://www.desertcart.be/products/181328644-optolong-l-pro-1-25-mounted-round-filter store_origin: BE region: Belgium --- # Reduces light pollution Rejects unwanted light Compatible with cameras Optolong L-Pro 1.25" Mounted Round Filter **Brand:** optolong **Price:** € 288.82 **Availability:** ✅ In Stock ## Summary > 🌠 Capture the cosmos like never before! ## Quick Answers - **What is this?** Optolong L-Pro 1.25" Mounted Round Filter by optolong - **How much does it cost?** € 288.82 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/181328644-optolong-l-pro-1-25-mounted-round-filter) ## Best For - optolong enthusiasts ## Why This Product - Trusted optolong brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Compatibility:** Designed for use with both monochrome and one-shot color cameras. - • **Transform Your Night Sky:** Dramatically reduces light pollution impact for clearer views. - • **Nebulae & Galaxies Awaits:** Perfect for capturing stunning reflection nebulae and galaxies. - • **Precision Light Rejection:** Effectively rejects mercury and sodium light, enhancing contrast. - • **Elevate Your Astrophotography:** Unlock the full potential of your astrophotography gear. ## Overview The Optolong L-Pro 1.25" Mounted Round Filter is engineered to significantly reduce light pollution, making it an essential tool for astrophotographers. It effectively rejects unwanted mercury and sodium light, enhancing contrast and clarity, and is compatible with both monochrome and one-shot color cameras, allowing for stunning captures of reflection nebulae and galaxies. ## Description Optolong L-Pro (L-Professional) is a multi-bandpass filter which selectively suppresses the transmission of light pollution lines. For example, mercury vapor lamps, high and low pressure sodium vapor lights and skyglow caused by emission from neutral oxygen in our atmosphere. L-Pro enhances the transmission of major emissions from nebula while offering great colour balance with its wide yet effective light pollution cutting transmission band. The balanced transmission allows objects with wide emission spectrum such as galaxies to be imaged with minimal colour cast (easier to correct in post-processing). Among the emission lines enhanced are OIII (496, 500nm), H-beta (486nm), NII (654, 658nm), H-alpha (656nm) and SII (672nm). Review: Optolong - Entrega a tiempo y buen producto Review: Effective broadband light pollution filter for OSC cameras - I think a couple of lightly-processed photos of the rosette and helix nebulae taken from a bortle 8 with a 70mm refractor and a one-shot color camera do most of the talking. About 15 minutes of light each. This filter does a great job on cutting out all my local light pollution while letting in enough good broadband light that it doesn't take me all night to get one or two pretty pictures. Possibly less expensive filters might be adequate, but they didn't come with transmission curves. I'll probably leave this permanently attached to my EAA rig. ## Product Details - **Brand:** Optolong - **Material:** Optical Glass - **Photo Filter Thread Size:** 77 Millimeters - **Coating Description:** Multi Coating - **Photo Filter Effect Type:** Enhancing - **Water Resistance Level:** Not Water Resistant - **Product Dimensions:** 1.25"L x 1.25"W - **Photo Filter Size:** 77 Millimeters ## Images ![Optolong L-Pro 1.25" Mounted Round Filter - Image 1](https://m.media-amazon.com/images/I/71Sgh833HZL.jpg) ![Optolong L-Pro 1.25" Mounted Round Filter - Image 2](https://m.media-amazon.com/images/I/610YKiBk6xL.jpg) ![Optolong L-Pro 1.25" Mounted Round Filter - Image 3](https://m.media-amazon.com/images/I/61dQjwemwwL.jpg) ![Optolong L-Pro 1.25" Mounted Round Filter - Image 4](https://m.media-amazon.com/images/I/6112pmlrIBL.jpg) ![Optolong L-Pro 1.25" Mounted Round Filter - Image 5](https://m.media-amazon.com/images/I/61nI6581VjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Optolong *by C***. on June 1, 2025* Entrega a tiempo y buen producto ### ⭐⭐⭐⭐⭐ Effective broadband light pollution filter for OSC cameras *by C***E on December 11, 2021* I think a couple of lightly-processed photos of the rosette and helix nebulae taken from a bortle 8 with a 70mm refractor and a one-shot color camera do most of the talking. About 15 minutes of light each. This filter does a great job on cutting out all my local light pollution while letting in enough good broadband light that it doesn't take me all night to get one or two pretty pictures. Possibly less expensive filters might be adequate, but they didn't come with transmission curves. I'll probably leave this permanently attached to my EAA rig. ### ⭐⭐⭐⭐⭐ Arrived as seller described *by G***E on December 25, 2023* This is everything I was looking for from this product. ## Frequently Bought Together - Optolong L-Pro 1.25" Mounted Round Filter - Optolong 1.25" L-Enhance Dual Narrowband Light Pollution Filter (H-Alpha and H-Beta/O-III) --- ## 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.be/products/181328644-optolong-l-pro-1-25-mounted-round-filter](https://www.desertcart.be/products/181328644-optolong-l-pro-1-25-mounted-round-filter) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-23*