TMB Optical
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TMB Optical of Cleveland, OH is a manufacturer of amateur telescopes and accessories, specializing in apochromatic refractors and astronomical eyepieces. TMB was named after its founder, optics designer Thomas M. Back. Besides producing optical equipment, TMB has licensed optics designs to other manufacturers, such as Astronomics and Burgess Optical. Thomas M. Back passed away in September, 2007, but the company continues in operation.