Used Tele Vue 3.5" Extension Tube

Condition: This is a used Tele Vue extension tube. It is in excellent condition with little sign of wear on the body. There are no scratches. Model with two tension screws. Description: Telescope drawtube extensions help your telescope reach focus when not using a diagonal — as is the case in many imaging applications. They are also useful (with or without diagonal) when you need more out-travel for focusing on nearby terrestrial subjects. Our extention tubes slip into any telescope's 2" drawtube and include brass clamp rings to prevent marring of accessory barrels. Specifications: Total length = 124mm (4.88") Extension provided = 89mm (3.50") Insertion depth = 85mm (3.35") Length of 2" nosepiece = 35mm (1.38") Maximum diameter (excluding thumbscrew) = 56.6mm (2.23") Weight = 5.5oz Threaded for 2" filters = Yes (female M48x0.75 filter thread)