M48 Extension Ring (2") - 30mm T ring The mount head has several

The mount head has several mounting holes for mounting a binocular holder using a 1/4 inch photo screw or a standard GP prism clamp for mounting small telescopes

the rail must be replaced with a longer dovetail rail however suitable rails are available separately

secondary mirror obstruction: 8

Fine adjustment: F57

M48 Extension Ring (2") - 30mm T ring The mount head has severalThis 30mm extension tube is simply screwed into the M48 thread of either a 2" eyepiece or 2" adapter and it provides an additional 30mm optical length to your image train. This is very helpful if your focuser doesn't have enough back focus to achieve focus in your eyepiece or camera. Spec: Material: Barrel made of black anodized metal Thread: Double sided 2" filter thread (M48 x 0. 75) female male Optical path length: 30mm excl. male thread