1. Standard M48x0.75mm Threads: Features standard M48x0.75mm internal and external threads with a diameter of 2 inches, ensuring compatibility with most telescopes, cameras and astronomical equipment. Ideal for daily observation and astronomical photography.
2. Anti-Glare Internal Thread: The internal thread is treated with a matte black finish to minimize optical reflection and interference, resulting in clearer, brighter images by eliminating unwanted light reflections during filming.
3. Precise Scale Adjustment & Image Spacing - Allows precise image scaling and meets the precise spacing requirements of field reducers and flatteners, effectively addressing the length and posterior focus challenges in astronomical photography. By combining extension tubes of different lengths, users can accurately adjust the distance between the telescope and the camera to improve the performance of images.
4. ALUMINUM ALLOY CONSTRUCTION - Made of premium metal and finished with anodized aluminum coating, the telescope extension tube ensures reliable performance even in harsh environments. Designed for long-term stability and efficiency.
5. EASY INSTALLATION AND REMOVAL - Easy to install and remove, making this length extension tube suitable for both beginners and professionals. Quickly attaches to telescope configurations for accurate observations and photographs.

Specification:
Item Type: Telescope Extension Tube
Material: aluminium alloy.
Light Block treatment: Internal with anti-reflective thread
Internal thread specification: M48x0.75mm
External thread specification: M48x0.75mm
External thread depth: approx. 3 mm / 0.12 inches.
Outer diameter: approx. 50.8mm/2"
Flange distance: approx. 10 mm / 0.39 inches.
Total length: approx. 13mm/0.51inch

How to use:
Install and use

Packing List:
1 x Telescope Extension Tube
1 x