All-metal and anodized aluminum process, durable for long-term use. Use the extension tube to achieve the correct image scale or precise spacing required for field reducers or flatteners.
The extension tube has a T2 inner thread and a T2 outer thread to solve spacing problems in astrophotography and eliminates a range of focusing issues.
The desired spacing can be achieved by combining multiple extensions of different lengths.
Type: Threaded extension tube for T2 astronomical telescope
SIZE: M42 x 0.75
Type: Monocular
Extension tube height: 3mm 5mm 7mm 10mm 12mm 15mm 20mm 30mm Why use it? When you cannot reach the plane to focus with a camera or eyepiece. The extension tube kit solves the problem. You can use this extension with any camera or eyepiece or with various adapters. The M42 x 0.75 threads at the ends make it extremely versatile.
Use this extension to achieve the correct image scale or for precise spacing required for a reducer or field flattener.
You can achieve the desired extension length by combining multiple extension bars of different lengths.
Color: Black
Material: Aluminum
Package Contents:
8 x M42 x 0.75 threaded extension tube (3/5/7/10/12/15/20/30mm)
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.