---
product_id: 138483396
title: "Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters"
brand: "gosky"
price: "¥388"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/138483396-gosky-astronomical-m48-extension-ring-kit-extension-tube-adapter-length
store_origin: JP
region: Japan
---

# 4 extension lengths (10-35mm) Precision M48x0.75 threading Durable anodized aluminum Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters

**Brand:** gosky
**Price:** ¥388
**Availability:** ❌ Out of Stock

## Summary

> 🌌 Elevate your astrophotography game with precision spacing!

## Quick Answers

- **What is this?** Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters by gosky
- **How much does it cost?** ¥388 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/138483396-gosky-astronomical-m48-extension-ring-kit-extension-tube-adapter-length)

## Best For

- gosky enthusiasts

## Why This Product

- Trusted gosky brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Build Quality:** All-metal anodized aluminum ensures long-lasting durability
- • **Precision Engineering:** T2 interior & exterior threads for flawless adapter integration
- • **Universal Compatibility:** M48x0.75 male & female threads fit 2-inch filters seamlessly
- • **Astrophotography Optimized:** Eliminates focusing issues for crisp celestial shots
- • **Customizable Focus Control:** Mix and match 10mm to 35mm tubes for perfect spacing

## Overview

The Gosky Astronomical M48 Extension Ring Kit offers four anodized aluminum extension tubes (10mm, 20mm, 30mm, 35mm) with M48x0.75 male and female threads on both ends. Designed to solve focusing and spacing challenges in astrophotography, it supports 2-inch filters and allows flexible combinations for exact image scale adjustments, ensuring sharp, professional-grade celestial images.

## Description

Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters

## Features

- Male thread - M48x0.75. Female thread - M48x0.75,eliminates a range of focusing problems
- The extension tube has a T2 interior thread and a T2 exterior thread for elegantly solving spacing problems in astrophotography
- Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners
- Includes 4 different lengths - 10mm 20mm 30mm 35mm. The required spacing can be achieved by combining several extenders of differing lengths,you can use 1 pcs, 2 pcs , 3 pcs， 4 pcs of the extension rings as you like
- All metal construction and anodizing aluminium process, durable for long time use

## Images

![Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters - Image 1](https://m.media-amazon.com/images/I/41QBDGAqljL.jpg)
![Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters - Image 2](https://m.media-amazon.com/images/I/51kaliAa0+L.jpg)
![Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters - Image 3](https://m.media-amazon.com/images/I/51YXVlR-6fL.jpg)
![Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters - Image 4](https://m.media-amazon.com/images/I/51VN-MGLn2L.jpg)
![Gosky Astronomical M48 Extension Ring Kit - Extension Tube Adapter - Length 10mm 20mm 30mm 35mm - M48x0.75 on Both Sides - Accept 2inch Filters - Image 5](https://m.media-amazon.com/images/I/51Uda4dNKvL.jpg)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*