Sky-Watcher Quantum Refractors
The Quantum top of the line ED-APO refractors offer premium optical performance for the discriminating amateur astronomer and imagers. Refractors are coveted for their high-definition and being superb for optimal detail of planets and binary stars while delivering the contrast needed to see faint nebulosity against a coal-black sky background. Quantum refractors utilize the most modern optical glasses and fabricating techniques to deliver the ultimate in high-fidelity astronomical imaging.
Each lens element is individually inspected for purity and absence of striations and other image-degrading imperfections. Every lens is pitched polished to exacting standards of optical fabrication and performance by highly skilled opticians and tested on an optical laser bench to rigidly controlled optical standards. The result is high-quality, diffraction-limited optics performing to the theoretical limits of their respective aperture sizes.