1. Compatible Design: Featuring standard M48x0.75mm thread with a 2 inch outer diameter, this telescope extension tube ensures compatibility with most telescopes, cameras, and astronomical devices, making it suitable for daily observation and astrophotography.
2. Reflection Reduction: The internal threading utilizes a matte finish to minimize optical reflections and interference, ensuring clearer and brighter images during filming, while preventing unnecessary light reflections from affecting image quality.
3. Precise Spacing: This M48 extension tube allows for the correct image proportion, meeting the precise spacing needs of focal​ reducers and field flatteners. By combining extension tubes of different lengths, you can precisely adjust the distance between the telescope and camera, enhancing your photography results.
4. Aluminum Alloy Construction: Made with a full metal structure and incorporating anodized aluminum technology, this extension tube is designed to withstand various harsh environments, ensuring stability and efficiency for dependable use.
5. Easy Installation: The M48x0.75 extension tube is very easy to install and remove, making it suitable for both beginners and professionals. It quickly connects to the telescope frame for precise observation or filming.

Specification:
Item Type: Telescope Extension Tube
Material: Aluminum Alloy
Light Block Treatment: Internal with Anti Reflection Thread
Internal Thread Specification: M48x0.75mm
External Thread Specification: M48x0.75mm
External Thread Depth: Approx. 4mm/0.16in
Outer Diameter: Approx. 50.8mm/2in
Flange Distance: Approx. 40mm/1.57in
Total Length: Approx. 44mm/1.73in

How to Use:
Install and use

packing list:
1 x Telescope Extension Tube