2'' TUBE EXTENSION - 80mm pier turn the adjustment screw in

turn the adjustment screw in the other direction until all 4 corners of your photos has the same sharpness

outer diameter 60mm (used for M-Uno and M-Zero mounts)

Three safety set screws

positioned below telescope rings

2'' TUBE EXTENSION - 80mm pier turn the adjustment screw inExtension tubes are used when the optical tube is too short and the focuser has not enough travel to reach the focus. This accessory increase the optical path of your telescope of 80mm. The tube include two thumb screws to secure the camera or the accessory used. The internal compression ring avoid any scratch on your accessory. The bottom part is threaded (M48x0. 75) to allow the connection of standard 2" filters. The safety groove stop the extension