---
product_id: 77767697
title: "SVBONY Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm"
brand: "svbony"
price: "¥7264"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/77767697-svbony-extension-tube-m42x0-75-on-both-sides-length-t2
store_origin: JP
region: Japan
---

# T2 thread compatibility Multiple length options Fully metal construction SVBONY Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm

**Brand:** svbony
**Price:** ¥7264
**Availability:** ✅ In Stock

## Summary

> 🔭 Elevate Your Astrophotography Game!

## 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?** ¥7264 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/77767697-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

- • **Focus Like a Pro:** Eliminates focusing problems, allowing you to capture the cosmos with clarity.
- • **Versatile Lengths:** Choose from 5mm, 10mm, 15mm, or 20mm to achieve the perfect image scale.
- • **Precision Engineering:** Crafted from durable anodized aluminum for long-lasting performance.
- • **Seamless Compatibility:** T2 interior and exterior threads ensure a snug fit with M42x0.75 products.
- • **Astrophotography Essential:** Designed specifically to solve spacing issues in astrophotography.

## Overview

The SVBONY Extension Tube Kit features a robust metal construction with anodized aluminum, designed to enhance your astrophotography experience. With multiple length options and T2 thread compatibility, this kit solves common spacing and focusing issues, making it an essential tool for capturing stunning celestial images.

## Description

SVBONY Extension Tube M42x0.75 on Both Sides Length T2 Extension Tube Kit Length 5mm 10mm 15mm 20mm

## 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

## Product Details

- **Brand:** SVBONY
- **Model Name:** FUSF9160A
- **Optical Tube Length:** 20 Millimeters
- **Eye Piece Lens Description:** NO
- **Objective Lens Diameter:** 20 Millimeters
- **Telescope Mount Description:** M42x0.75
- **Product Dimensions:** 2.4"D x 2.4"W x 2"H
- **Focus Type:** Manual Focus
- **Finderscope:** Reflex
- **Item Weight:** 2.08 ounces

## 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

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**Shop now:** [https://www.desertcart.jp/products/77767697-svbony-extension-tube-m42x0-75-on-both-sides-length-t2](https://www.desertcart.jp/products/77767697-svbony-extension-tube-m42x0-75-on-both-sides-length-t2)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-03*