HOTECH 1.25 Inch Laser Collimator for Newtonian and Schmidt-Cassegrain Telescopes

HOTECH 1.25 Inch Laser Collimator for Newtonian and Schmidt-Cassegrain Telescopes

HoTech 1.25 SCA Laser Collimator for both Newtonian and SCT Telescopes. Unit comes with built-in Selft Centering Adapter and one CR123 battery.The HoTech laser collimator separates itself from all the other laser collimators with its innovative self-centering adapter technology (SCA). The mechanism allows precise and repeatable installation in all brands of 1.25" and 2" telescope focusers. All laser collimators in the current market have one fundamental problem - the slop in the adapting mechanism between the laser collimator and the telescope focuser. This problem is clearly recognized and often discussed among astronomers but so far there is no definite solution in the market yet.No matter how tight the tolerances are machined on the laser collimator or the focuser a small gap is required to allow installation of the laser collimator. Once the laser collimator is inserted the required gap becomes a problem. The laser collimator is fixed either with one or more thumbscrews or an unified compression ring. Both methods introduce a very critical issue namely an off-axis installment that instantly destroys the precision of your collimation instrument along the entire optical axis.The patented HoTech SCA Laser Collimator separates itself from all the other laser collimators with its innovative self-centering adapter technology (SCA). The mechanism allows precise and repeatable installation in all brands of 1.25" and 2" telescope focusers. All laser collimators in the current market have one fundamental problem - the slop in the adapting mechanism between the laser collimator and the telescope focuser. Using the conventional thumbscrew or the unified compressing ring to adapt the laser collimator will definitely shift the optical center to one side. The Self-Centering Adapter cleverly eliminates the slop by linearly compressing the built-in rubber rings. By doing this the diameter of the rings expands to compensate the gap.