Shenyang Zhongyi Optical Technology Co., Ltd. was established in 1984. One of its product brands is Mitakon.A full set of design technical data, production technology and processing equipment were introduced from Japan, including SM-NC90 multi-axis CNC cam milling machine, HL-3A multi-head lathe and high-speed polishing machine with adjustable spindle deflection angle and other Japanese production equipment. These equipments were high-precision and advanced equipment that were not available in China at the time, thus ensuring the high quality of the Medecang brand lenses.28-80mmf3.9-5.2, 28-135mmf/3.8-5.2, 80-200mmf4.5, 20mmf/2.8 135mmf2.8, 24mmf2.8, 50mmf1.7 and many other Mitakon brand zoom and fixed focus camera lenses, as well as It supplied lenses to famous domestic camera manufacturers. It was a R&D and production enterprise of the highest quality lenses in China at that time. It was one of the most senior and experienced professional manufacturers of camera interchangeable lenses.After 2004, China's projector market was booming. The company developed and mass-produced a variety of projector lenses such as 90mm, 120mm, 140mm, 160mm, 170mm, 200mm, 240mm, 450mm, etc. Products are in short supply.After 2010, with the development and popularization of digital cameras. The company began to develop, design, and produce lenses for digital cameras. The camera lenses developed by the company are divided into two series, SPEEDMASTER series lenses and Creator series lenses. Among them, the SPEEDMASTER series is a high-end ultra-large aperture lens series. It has successively produced aps format lenses with 50mmf0.95, 35mmf0.95 and 25mmf0.95 focal lengths, as well as full-frame SLR lenses with 85mmf1.2 and 135mmf1.4 focal lengths. Among them, the 0.95 ultra-large aperture series is It is the first of its kind in China and the world's top lens that only top professional companies such as Leica can produce abroad. The Creator series is a series of large-aperture standard lenses, including 35mmf2.0, 85mmf2.0, 135mmf2.8 and other SLR full-frame lenses. 20mmf2.0 microscope lens. The 15 products in the company's series of focus-reducing and light-increasing adapters are the world's first, providing a very good adapter for high-quality full-frame lenses to be used on mirrorless cameras. The products produced by the company are known for their high quality and cost-effectiveness. They have been well received by organizers and photography enthusiasts at professional photographic equipment exhibitions in Germany, the United States, Japan and Beijing!Sold to Hong Kong, Macao, South Korea, Japan, Southeast Asia, the United States and Europe and other countries and regions.It not only produces high-quality, cost-effective series of camera lenses and a variety of focus-reducing and light-enhancing adapters, but also produces high-quality industrial vision lenses and long-focal-length zoomable surveillance lenses, as well as lenses for medical equipment and supporting special light sources.It has rich experience in optical lens design, R&D and production, adhering to the spirit of great craftsmen, and takes it as its own responsibility to do well and refine every product. Produce more and better high-quality lenses to serve photographers around the world.