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.
The extension tube has a M68 interior thread and a M68 exterior thread for solving spacing problems in astrophotography and eliminates a range of focusing problems.
Type: Astronomical Telescope M68 thread Extension Tube
Extension Tube Height: 37mm
Male thread: M68*1mm
Female thread: M68*1mm
Weight: 67.2g
Color: Black
Package Include:
1 x M68*1 Extension Tube
