M48 Extension Ring (2") - 30mm T ring With the adjustment levers on

With the adjustment levers on the ADC

With this filter

Focuser size: 3

Connection at camera side: T2 thread (male) - M42 x 0

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

M48 Extension Ring (2") - 30mm T ring With the adjustment levers onThis 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