2" 40mm Eyepiece Barrel Extension Recommended StarPointer Pro attaches quickly to

StarPointer Pro attaches quickly to any telescope and secures with a dovetail connection and finger knobs

I am named after the Roman God of War because my red color is reminiscent of blood

— David Nagler Specifications

Optical performance for huge sensors with diagonals of up to 52mm wide is still excellent

Technical Data

2" 40mm Eyepiece Barrel Extension Recommended StarPointer Pro attaches quickly toExtension focal length: 40mm. Total length: 70mm. Extension tube provides extra focuser "back travel" often needed for short range terrestrial viewing through a telescope, or for astrophotographic applications Fits in 2" telescope focusers, and accepts 2" eyepieces or accessories. Threaded for use with standard 2 Inch astrophotography filters Features a locking thumbscrew to secure any inserted astronomy accessory, with a brass compression ring to