Changchun Richen Optronics Co., Ltd. is a private company. We have professional optical product designers and mechanism structure designers. Currently we focus on optical product design and production. We have an optical cold processing branch factory and an optical workshop for assembly, provided with ability of large scale production.Our company is located in Chinese Optical Base---Changchun City. We mainly engage in manufacturing and marketing optical lenses. Since established in 2000, we have been a professional manufacturer with large scale production ability. At present, we mainly export products to Europe, America, Japan and other countries and regions.Our main products include all kinds of supplementary/converter/conversion lenses such as Wide Angle Lenses, Telephoto Lenses, Fisheye Lenses and Broadcast Lenses. We also have Optics components such as plane lenses, spherical lenses and cylindrical lenses. Cameras and video accessories are available as well.All of Richarm conversion lenses are proudly made in China. the lens elements compensate effectively for astigmatism, distortion and spherical aberration,they have an excellent image quality.The function of conversion lens is to make distant objects appear larger and real closer.The selected conversion Lenses can suit for Canon ,Casio ,Fujifilm,Konica Minolta ,Nikon ,Olympus ,Panasonic ,Sony,these famous brand.All of our conversion lenses are made of high index optical glass elements.They're designed with new designing concept of different formula element to obtain the maximum resolution power with low dispersion.There will be no reduction of light value when these conversion lenses are attached on the camera's lens.If you bought camera or camcorder's thread is no standard we may use a suitable step down/up adaptors effectively ,comes with different size for adaptor such as size 30mm/30.5mm/43mm/ 52mm/ 55mm/ 58mm / 67mmRichen people emphasizes service, takes science and technology progress as fundamental, improves product structure and meets market needs of high quality by intelligence, satisfies different customers with trustworthiness. We insist on the principles of "good faith, good concepts for all customers". We are highly accepted by customers because of our precious ideas, sincere cooperation and mutual benefits offered.We are very glad to welcome customers who want to visit our company, and become friends through this website. Let's cooperate sincerely and make progress together.