--- product_id: 323397172 title: "SVBONY Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm" brand: "svbony" price: "R1564" currency: ZAR in_stock: true category: "Svbony" url: https://www.desertcart.co.za/products/323397172-svbony-extension-tube-m42x0-75-on-both-sides-length-t2 store_origin: ZA region: South Africa --- # Multiple extension lengths (5-20mm) Precision M42x0.75 threading Durable anodized aluminum build SVBONY Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm **Brand:** svbony **Price:** R1564 **Availability:** βœ… In Stock ## Summary > πŸ”­ Elevate your astrophotography game with precision and durability! ## Quick Answers - **What is this?** SVBONY Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm by svbony - **How much does it cost?** R1564 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/323397172-svbony-extension-tube-m42x0-75-on-both-sides-length-t2) ## 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 - β€’ **Built to Last:** Fully metal, anodized aluminum construction ensures durability for years of astrophotography. - β€’ **Customizable Extension:** Choose from 5mm, 10mm, 15mm, or 20mm tubes to tailor your setup precisely. - β€’ **Seamless Focus Control:** Eliminate focusing issues with dual T2 threading for perfect spacing. - β€’ **Universal Compatibility:** Fits all M42x0.75 threaded cameras and telescope accessories for versatile use. - β€’ **Optimized for Astrophotography:** Minimized internal reflections with fully threaded interior for crystal-clear images. ## Overview The SVBONY T2 Extension Tube Kit features fully anodized aluminum construction with precision M42x0.75 male and female threads on both ends. Available in four lengths (5mm, 10mm, 15mm, 20mm), it solves spacing and focusing challenges in astrophotography setups, ensuring optimal image scale and compatibility with reducers or field flatteners. Designed for durability and minimal internal reflections, it’s a must-have for serious telescope photographers. ## Description Specification SVBONY extension tube kit provides extra focuser viewing through telescope or for astrophotographic applications Machined and anodized aluminum tube;the inside of the adapter is fully threaded to minimize reflections Fully metal construction and anodizing aluminum process, durable for long time use Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners The extension tube has a T2 interior thread and a T2 exterior thread for solving spacing problems in astrophotography and eliminates a range of focusing problemsFeatures: Type: Astronomical T2 thread Extension Tube Male thread: M42x0.75mm Female thread: M42x0.75mm Link or extend tube length of the M42x0.75 Products Length: 5mm 10mm 15mm 20mmPackage includes 1xT2 thread extension tube kit ## Features - Fully metal construction and anodizing aluminum process;durable for long time use - Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners - T2 interior thread and T2 exterior thread for solving spacing problems in astrophotography and eliminates a range of focusing problems - Astronomical T2 thread extension tube;male thread:M42x0.75mm;female thread: M42x0.75mm - Link or extend tube length of the M42*0.75 products;Male thread;M42*0.75mm ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BKYQF1H | | Additional Features | Extension Tube M42x0.75 | | Best Sellers Rank | #110,149 in Electronics ( See Top 100 in Electronics ) #67 in Telescope Photo Adapters | | Brand | SVBONY | | Coating | Fully Coated | | Compatible Devices | Cameras with M42x0.75 thread | | Customer Reviews | 4.6 4.6 out of 5 stars (201) | | Exit Pupil Diameter | 20 Millimeters | | 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 | 6.1D x 6.1W x 5.1H centimeters | | Item Weight | 59 g | | Manufacturer | SVBONY | | Manufacturer Part Number | FUSF9160A | | Model Name | T2 thread extension tube kit | | Model Number | FUSF9160A | | Mount | M42x0.75 | | Number of Items | 1 | | Number of Packs | 1 | | Objective Lens Diameter | 20 Millimeters | | Optical-Tube Length | 20 Millimeters | | Power Source | Manual Operation | | UPC | 609378746406 | | Unit Count | 1 Count | ## Product Details - **Brand:** SVBONY - **Eye piece lens description:** NO - **Model name:** T2 thread extension tube kit - **Objective lens diameter:** 20 Millimeters - **Optical tube length:** 20 Millimeters ## Images ![SVBONY 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/323397172-svbony-extension-tube-m42x0-75-on-both-sides-length-t2](https://www.desertcart.co.za/products/323397172-svbony-extension-tube-m42x0-75-on-both-sides-length-t2) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-10*