--- product_id: 704972452 title: "SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm)" brand: "svbony" price: "2242761₫" currency: VND in_stock: true reviews_count: 5 category: "Svbony" url: https://www.desertcart.vn/products/704972452-sv157-extension-tube-1-25-inch-optical-length-40mm-total store_origin: VN region: Vietnam --- # 70mm total length precision Threaded for 1.25" filters Full metal durable build SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm) **Brand:** svbony **Price:** 2242761₫ **Availability:** ✅ In Stock ## Summary > 🔭 Elevate your stargazing game with precision and style! ## Quick Answers - **What is this?** SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm) by svbony - **How much does it cost?** 2242761₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/704972452-sv157-extension-tube-1-25-inch-optical-length-40mm-total) ## 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 - • **Pinpoint Focus Mastery:** Achieve perfect focus with your eyepiece or camera every time. - • **Rugged All-Metal Design:** Crafted from anodized aluminum alloy for long-lasting durability and premium feel. - • **Secure Brass Compression:** Protects your valuable telescope accessories from scratches and damage. - • **Anti-Reflection Threading:** Internal full threading reduces stray light, boosting image clarity and contrast. - • **Seamless Filter Integration:** Threaded end supports all standard 1.25" astrophotography filters for enhanced imaging. ## Overview The SVBONY SV157 is a 70mm long, 1.25-inch extension tube made from anodized aluminum alloy, designed to help astrophotographers and telescope users achieve perfect focus with eyepieces and cameras. It features full internal threading to reduce reflected light, a threaded end compatible with standard 1.25" filters, and a brass compression ring to protect your gear. Lightweight yet durable, it’s a must-have accessory for serious astronomy enthusiasts. ## Description Everyone who likes astronomy knows:Sometimes you cannot get to the right focal plane for focusing with a camera or eyepiece. Now SV157 extension tube can solve your problem. Built with metal material Machined of high quality aluminum and anodized black, durable for long time use Compatible with 1.25" telescope focusers Fits in 1.25" telescope focusers, and accepts 1.25" eyepieces or accessories.Threaded for use with standard 1.25 Inch astrophotography filters Specifications: Material: Aluminum Alloy 1.25" Extension Tube L=70mm Dimensions (mm):ɸ39*70 mm Weight (g): 47g/0.1lb Package Includes: 1×SVBONY SV157 1.25 " Extension Tube Review: Excelente producto! - Excelente producto, calidad superior, bonito diseño y color, llegó super rápido, gracias!!!!! Review: Great product ## Features - SV157 1.25" extension tube can help your eyepiece and camera focus well;Let you enjoy more beautiful scenery - Can install filters; SV157 1.25" extension tube is threaded at the end to accommodate a standard 1.25" filter - Full metal design; SV157 1.25" extension tube is made of all-metal material and has a long service life - Humanized bottom thread; The inside of the SV157 has full threads to reduce reflected light - With a brass compression; with a brass compression insh to prevent the marring of your telescope accessories ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083TQHTLG | | Brand | SVBONY | | Brand Name | SVBONY | | Compatible Devices | Camera, Filter | | Customer Reviews | 4.5 out of 5 stars 65 Reviews | | Eye Piece Lens Description | Plossl | | Finderscope | Reflex | | Focal Length Description | 40 millimeters | | Focus Type | Manual Focus | | Item Dimensions D x W x H | 10.2D x 5.1W x 5.1H Centimeters | | Item Weight | 47 Grams | | Manufacturer | SVBONY | | Manufacturer Part Number | FW9118B | | Model Name | SV157 | | Model Number | FUSW9118B | | Mount | 1.25 inches mount | | Objective Lens Diameter | 70 Millimeters | | Product Dimensions | 10.2D x 5.1W x 5.1H Centimeters | | Telescope Mount Description | 1.25 inches mount | ## Product Details - **Brand:** SVBONY - **Objective Lens Diameter:** 70 Millimeters - **Product Dimensions:** 10.2D x 5.1W x 5.1H Centimeters - **Focus Type:** Manual Focus - **Finderscope:** Reflex ## Images ![SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm) - Image 1](https://m.media-amazon.com/images/I/51TcAA+X2EL.jpg) ![SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm) - Image 2](https://m.media-amazon.com/images/I/61Tzw9s80nL.jpg) ![SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm) - Image 3](https://m.media-amazon.com/images/I/51AN4yBDTxL.jpg) ![SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm) - Image 4](https://m.media-amazon.com/images/I/61qZBPyDGzL.jpg) ![SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm) - Image 5](https://m.media-amazon.com/images/I/61gslkrZOjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excelente producto! *by A***R on 22 July 2024* Excelente producto, calidad superior, bonito diseño y color, llegó super rápido, gracias!!!!! ### ⭐⭐⭐⭐⭐ Great product *by A***O on 11 February 2024* ### ⭐⭐⭐⭐⭐ Plain and simple, it works. *by S***N on 8 November 2025* ## Frequently Bought Together - SVBONY SV157 Extension Tube 1.25 inch Optical Length 40mm Total Length 70mm Extension Tube for Telescope (70mm) - SVBONY 0.5X Focal Reducer - 1.25 inches Fully Multi Coated for Telescope Eyepiece Photography and Observing --- ## 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.vn/products/704972452-sv157-extension-tube-1-25-inch-optical-length-40mm-total](https://www.desertcart.vn/products/704972452-sv157-extension-tube-1-25-inch-optical-length-40mm-total) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-22*