--- product_id: 77767697 title: "Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm" price: "32856CFA" currency: XOF in_stock: true url: https://www.desertcart.sn/products/77767697-extension-tube-m42x0-75-on-both-sides-length-t2-extension store_origin: SN region: Senegal --- # Lengths: 5, 10, 15, 20mm Precision M42x0.75 threading Durable anodized metal build Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm **Price:** 32856CFA **Availability:** ✅ In Stock ## Summary > 🔭 Elevate your astrophotography game with precision and durability! ## Quick Answers - **What is this?** Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm - **How much does it cost?** 32856CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/77767697-extension-tube-m42x0-75-on-both-sides-length-t2-extension) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Compatibility:** Fits perfectly with M42x0.75 threaded cameras and telescope adapters for flawless astrophotography setups. - • **Rugged Metal Durability:** Crafted from fully anodized aluminum, these tubes withstand long-term use and harsh field conditions without compromise. - • **Trusted Brand with Support:** SVBONY’s responsive customer service and 1-year warranty guarantee peace of mind for serious hobbyists and pros alike. - • **Customizable Extension Lengths:** Choose from 5mm, 10mm, 15mm, or 20mm tubes to achieve the exact backfocus distance you need—no guesswork required. - • **Optimized for Astrophotography:** Eliminates focusing issues and spacing problems when used with reducers and field flatteners, ensuring crisp, clear celestial shots. ## Overview The SVBONY Extension Tube Kit offers four anodized aluminum tubes (5mm, 10mm, 15mm, 20mm) with precise M42x0.75 threading on both ends, designed to solve spacing and focusing challenges in astrophotography. Compatible with cameras and telescope adapters, these durable tubes enable exact backfocus adjustments for superior image quality, backed by SVBONY’s reliable customer support and warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BKYQF1H | | Additional Features | Extension Tube M42x0.75 | | Best Sellers Rank | #153 in Telescope Photo Adapters | | Brand | SVBONY | | Compatible Devices | Cameras with M42x0.75 thread | | Customer Reviews | 4.5 out of 5 stars 215 Reviews | | Eye Piece Lens Description | NO | | Field Of View | 1.71 Degrees | | Finderscope | Reflex | | Focal Length Description | 15 millimeters | | Focus Type | Manual Focus | | Item Dimensions D x W x H | 2.4"D x 2.4"W x 2"H | | Item Weight | 2.08 ounces | | Manufacturer | SVBONY | | Manufacturer Part Number | FUSF9160A | | Model Name | FUSF9160A | | Model Number | FUSF9160A | | Mount | M42x0.75 | | Objective Lens Diameter | 20 Millimeters | | Optical Tube Length | 20 Millimeters | | Optical-Tube Length | 20 Millimeters | | Telescope Mount Description | M42x0.75 | | UPC | 609378746406 | | 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 | ## Product Details - **Brand:** SVBONY - **Eye Piece Lens Description:** NO - **Finderscope:** Reflex - **Focus Type:** Manual Focus - **Item Weight:** 0.13 Pounds - **Model Name:** FUSF9160A - **Objective Lens Diameter:** 20 Millimeters - **Optical Tube Length:** 20 Millimeters - **Product Dimensions:** 2.4"D x 2.4"W x 2"H - **Telescope Mount Description:** M42x0.75 ## Images ![Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm - Image 1](https://m.media-amazon.com/images/I/61vwE6mP6PL.jpg) ## Questions & Answers **Q: will this product fit the SV305 pro?** A: I'd contact SyBony directly - they make both the SV305 camera and this helicoid. The "1/25in" spec is common for telescope eyepiece accessories including cameras, but this version (they make others) of the helicoid has 42x0.75mm threads (T-mount) on both sides, implying another model or an additional adapter. **Q: what is the outside diameter?** A: Dear customer , Thanks for your contact. 1.77inch. 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 fit on my 1.25" eyepiece / camera?** A: Dear customer , Thanks for your contact. SVBONY Extension Tube has M42x0.75 male thread and M42x0.75 female thread. It cannot be directly connected to the 1.25-inch eyepiece, but can be connected to the camera through an adapter ring. Generally used to solve spacing problems in astrophotography. 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 --- ## 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.sn/products/77767697-extension-tube-m42x0-75-on-both-sides-length-t2-extension](https://www.desertcart.sn/products/77767697-extension-tube-m42x0-75-on-both-sides-length-t2-extension) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-17*