Apertura 1.25" Extension Tube - 35 mm
Apertura 1.25" Extension Tube - 35 mm Long
The Apertura 35 mm Extension Tube is 1.25" on both ends and adds 35 mm (1.38") of focal travel to bring your accessory and telescope combination into focus.
This 1.25" Extension Tube is CNC machined and has a beautiful fit and finish. Equipped with a brass compression ring, this 35 mm extension tube will not mar your eyepieces or accessories.