Tele Vue 3.5" Extension Tube (X3C-0009)

Tele Vue 3.5" Extension Tube

The Tele Vue 3.5″ Extension Tube helps your telescope reach focus when not using a diagonal — as is the case in many imaging applications. It is are also useful (with or without diagonal) when you need more out-travel for focusing on nearby terrestrial subjects.

Tele Vue’s extensions tubes slip into any telescope’s 2″ drawtube and include brass clamp rings to prevent marring of accessory barrels.