Designed for Reflector telescope; with removable 2" adapter both fit for standard 1.25 inch diameter and 2 inch diameter; Red laser collimation beam with 7 brightness levels; wavelength 635-655 nm; Output power: less than 5mw; much safer for your eyes. This sturdy laser unit allows you to swiftly and precisely collimate your Newtonian telescope; Only when the optics have been accurately collimated can the telescope offer you its full performance
Precision aluminium housing has front opening which laser beam can be emitted for optimal adjustment; side window allow 45 degree disk with central hole to be viewed; used to see whether laser is reflected back on itself; indicate well collimated optics
The laser comes fully adjusted however further adjust if required; it has three openings for adjustment; arranged at 120°; which are initially sealed; small screw cap at the rear of the laser must be first unscrewed to allow this
100 Percent Brand New and High Quality: Multi-Coated 2 inch 80 degree F15 mm UWA telescope eyepiece; the Ultra-Wide 80 Degree Eyepieces are equipped with plastic case; which can better protect eyepieces and against dust than the cap
6-Elements in 4 Groups Design: Fully multi-coated and soft eyecup; the inside of the adapter is fully threaded to minimize reflections