T2 Extension Tube - 40mm Length

.. precisely machined aluminium T2 extension tube with an effective lengh of 7.5mm (not counting the length of the male thread).

Specifications:
-- Adaptation on the telescope side: T2 female (M42x0.75)
-- Adaptation on the eyepiece side: T2 Male
-- Length 40mm
-- Clear aperture 37.5mm

Practical Tips from TS

This extension tube is well suited for building eyepiece projection adaptors. The inside diameter is large enough for most 1.25" eyepieces.