--- product_id: 376665721 title: "SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical" brand: "svbony" price: "144.51 DT" currency: TND in_stock: true reviews_count: 5 category: "Svbony" url: https://www.desertcart.tn/products/376665721-svbony-0-5x-telescope-focal-reducer-1-25-inches-filter store_origin: TN region: Tunisia --- # Increases field of view 0.5x focal length reducer Fits all 1.25" eyepieces SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical **Brand:** svbony **Price:** 144.51 DT **Availability:** ✅ In Stock ## Summary > 🌠 Expand your universe — see more, capture more, be the star of your astro circle! ## Quick Answers - **What is this?** SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical by svbony - **How much does it cost?** 144.51 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/376665721-svbony-0-5x-telescope-focal-reducer-1-25-inches-filter) ## 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 - • **Double Your Sky Coverage:** Halve your telescope's focal length for a breathtakingly wider view. - • **Astro-Ready Multi-Coated Optics:** Fully multi-coated glass ensures crisp, clear images with minimal glare. - • **Lightweight & Durable Metal Build:** Premium anodized aluminum housing built to last through countless stargazing sessions. - • **Universal 1.25" Thread Compatibility:** Seamlessly fits all standard eyepieces and photo adapters for instant upgrades. - • **Perfect for Astrophotography & Visuals:** Shorter exposure times and expanded image fields make your night sky shots stand out. ## Overview The SVBONY 0.5X Telescope Focal Reducer is a precision-engineered accessory that halves your telescope's focal length, dramatically increasing the field of view. Designed with fully multi-coated optical glass and a durable anodized aluminum body, it fits all standard 1.25" eyepieces and photo adapters. Ideal for astrophotography and visual observation, it reduces exposure times and broadens your celestial perspective, making it a must-have for serious amateur astronomers. ## Description Features： Apply to: 0.5x reducer for screwing into a filter thread;more lens speedUsing for: Increase the image field of your web camera;Use the reducer visually with an eyepiece;also ideal for video astronomy See the Moon: Record large areas of the moon's surface Specifications: Focal Reducer: 0.5X Lens Material: pure optical glass lens Lens material: Broadband coating Sleeve material: Metal Barrel Size: 1.25 inch / 31.7mm Thread interface: M28x0.6 pitch (Fine Thread) Total item length (including external thread): 0.55inch / 14mm Total item length (excluding external thread): 0.43inch / 11mm Clear aperture: 0.87inch / 22mm Package Include: 1 X SVBONY 1.25" Telescope 0.5X Focal Reducer Review: Excelente producto! - Excelente producto, calidad superior, bonito diseño y color, llegó super rápido, gracias!!!!! Review: Metal - Metal construction , no plastic ## Features - Fits all standard 1.25" scope eyepieces;Its role is to reduces the focal length of your telescope by half ;increasing the field of view;and shorter exposure times for astrophotography;usually for a longer focal length telescope - The reducer has standard 1.25inch telescope threads M28x0.6 and fits easily into any 1.25" eyepiece or any 1.25" photo adapter;diagonal;extender tube;increase the image field of your web cameras - Fully multi-coated optics held in a black-anodized aluminum filter cell;nice anodized aluminum housing - It is not recommended for very fast scopes or very wide angle eyepieces for visual - Screw the reducer into a 1.25" eyepiece;and you will get a smaller magnification and a significantly larger field of view;simply use the reducer if you still need the correct eyepiece ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01EUY0VFK | | Additional Features | Focal Length Reduction for Increased Field of View | | Best Sellers Rank | #150,911 in Electronics ( See Top 100 in Electronics ) #31 in Telescope Filters | | Brand | SVBONY | | Coating | Fully Multi-Coated | | Compatible Devices | Devices with 1.25'' eyepiece or photo adapter | | Customer Reviews | 4.0 out of 5 stars 134 Reviews | | Exit Pupil Diameter | 0.79 Millimeters | | Eye Piece Lens Description | Fully Multi Coated | | Eye piece lens description | Fully Multi Coated | | Finderscope | Reflex | | Focal Length Description | Reduced focal length of 0.5x, original focal length approximately 63.4 millimeters | | Focus Type | Manual Focus | | Item Dimensions D x W x H | 51D x 13W x 51H millimeters | | Item Weight | 18 g | | Manufacturer | SVBONY | | Manufacturer Part Number | FF9115A | | Model Name | RM | | Model Number | FF9115A | | Model name | RM | | Mount | Altazimuth Mount | | Number of Items | 1 | | Number of Packs | 1 | | Objective Lens Diameter | 31.7 Millimeters | | Objective lens diameter | 31.7 Millimeters | | Optical tube length | 1.25 Inches | | Optical-Tube Length | 1.25 Inches | | Power Source | Focal Reducer | | Telescope mount description | Altazimuth Mount | | UPC | 601490381145 | | Unit Count | 1 Count | | Zoom Ratio | 2:1 | ## Product Details - **Brand:** SVBONY - **Eye piece lens description:** Fully Multi Coated - **Model name:** RM - **Objective lens diameter:** 31.7 Millimeters - **Optical tube length:** 1.25 Inches ## Images ![SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical - Image 1](https://m.media-amazon.com/images/I/61v17kmA1lL.jpg) ![SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical - Image 2](https://m.media-amazon.com/images/I/712SgQBaghL.jpg) ![SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical - Image 3](https://m.media-amazon.com/images/I/61z+oDyNjgL.jpg) ![SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical - Image 4](https://m.media-amazon.com/images/I/710QSqa8i-L.jpg) ![SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical - Image 5](https://m.media-amazon.com/images/I/51SWG0saqqL.jpg) ## Questions & Answers **Q: Can a filter be threaded onto this redeucer?** A: This product has the same threading front and back as a 1.25" filter so it fits on the end of a 1.25" eyepiece. However, I returned this product, as I discovered that placing the reducer at this point in the optical path reduced the FOV at the same time that it reduced the magnification. **Q: is this compatible with the sv305 eye piece camers?** A: thanks so much for your question. Yes, the SVBONY 0.5X Telescope Focal Reducer 1.25 inches is compatible with the sv305 eye piece camers. If any, please concact us via amazon message, we are always here for you. **Q: Can this work with a mak cassegrains?(specifically the skymax 127** A: Dear customer , Thanks for your contact. Sorry, it fits all standard 1.25" scope eyepieces. 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: Will this focal reducer give me a wider field of view when screwed onto the svbony sv105 eyepiece camera?** A: Yes. Magnification reduces and field of view widens. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excelente producto! *by A***R on 22 July 2024* Excelente producto, calidad superior, bonito diseño y color, llegó super rápido, gracias!!!!! ### ⭐⭐⭐⭐⭐ Metal *by S***K on 2 September 2021* Metal construction , no plastic ### ⭐⭐⭐⭐⭐ Powerful focal reducer in a small form factor - make sure that's what you need *by P***F on 30 March 2024* A powerful focal reducer in a small factor. I purchased it to help my guiding scope focus on large objects that took too much of my field of view and did not care about aberrations that might accompany this type of optics. Good value for the money. ## Frequently Bought Together - SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical - SVBONY SV105 Telescope Camera, 1.25 inch IMX307 CMOS Color Electronic Telescope Eyepiece, Planetary Camera for Telescope, Suitable for Astrophotography Beginners - SVBONY Telescope Filter 1.25 inches UHC Filter Astrophotography to Improve The Image Contrast Reduces Light Pollution (1.25 inch) --- ## 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.tn/products/376665721-svbony-0-5x-telescope-focal-reducer-1-25-inches-filter](https://www.desertcart.tn/products/376665721-svbony-0-5x-telescope-focal-reducer-1-25-inches-filter) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-08*