Orion 5691 LaserMate Deluxe II Telescope Laser Collimator

With the Orion LaserMate Deluxe II Laser Collimator, you will get dead-on alignment (a.k.a., collimation) of your reflector telescope's primary and secondary mirrors quickly and consistently. Its "rear-view" port has a bulls-eye target that lets you adjust the telescope's primary mirror while conveniently standing at the rear of the telescope, where the primary mirror adjustment screws are located. You just adjust the collimation knobs until the laser beam's red dot hits the bulls-eye, and then you're done! This second-generation LaserMate Deluxe features and improved, all-aluminum housing with a wider, 3mm barrel flange to ensure that the collimator seats squarely in the telescope's eyepiece holder - exactly parallel to the focuser's mechanical axis. This, combined with the highly accurate factory-set alignment of the laser within the housing, results in consistently pinpoint collimation with every use! Your reflector telescope will serve up the sharpest, clearest views possible, night after night. The Orion LaserMate Deluxe II is ideal for use with any Newtonian reflector telescope, including Dobsonian reflectors, StarBlast reflectors, and Newtonian astrographs. Compatible with any 1.25" telescope focuser or 2" focuser with an 1.25" adapter. Includes one 3V CR2032 button-cell lithium battery. Warning: The Class 3R laser complies with US 21 CFR 1040.10 and 1040.11 and is FDA Certified and IEC Compliant. Warning Class 3R laser product, avoid direct eye exposure.