Multi-Function: Designed for Reflector telescope; fit for standard 1.25 inch diameter; this sturdy laser unit allows to swiftly and precisely collimate Newtonian telescope; accurate collimation in a few minutes provide more clearer image
Premium metal construction and anodizing aluminium processfor long time use; require one CR2032 lithium battery
Practical Design: Red laser collimation beam with 7 brightness levels; wavelength 635-655 nm; output power: 3.8mW; Complies with Class 3R laser safety standards; much safer for your eyes; only when the optics have been accurately collimated can the telescope offer you its full performance
Solid dovetail bar with slotted holes and 1/4" photo thread; connects cameras to astronomical mounts with Vixen GP-style quick release system
Female 1/4" thread in the middle of the dovetail bar; two slotted holes suitable for M6 and 1/4"-20 socket screws - each 79.3 mm long - depth 10 mm