Camera booting with a loud noise Solution: disassemble the camera to check the inside of the lens. The severity of this type of failure can be large or small. If you are lucky, the lens slide may be misaligned, remove and install on the line. If you are not lucky, if you break the internal gears of the camera or something, the camera may be scrapped. A friendly reminder: never put external forces on the camera lens, especially when the camera is turned on and off.
Canon (Canon [1] ), is a Japanese world leader in the production of imaging and information products, integrated group, since its inception in 1937, after years of unremitting efforts, Canon has globalized its business and expanded into various fields. Canon's product lineup*** is spread across three main areas: personal products, office equipment and industrial equipment, with major products including cameras and lenses, digital cameras, printers, copiers, fax machines, scanners, broadcasting equipment, medical devices and semiconductor production equipment. Canon is headquartered in Tokyo, Japan, and has four regional sales headquarters in the Americas, Europe, Asia and Japan, with 200 subsidiaries around the world, employing more than 100,000 people.On March 9, 2016, Japan's Toshiba held a board of directors meeting and ultimately decided to sell its Toshiba Medical Systems to Canon, which made a takeover offer of ￥700 billion (approx. RMB 40.5 billion).On September 5, 2018, Canon officially released the EOS R system, EOS R full-frame dedicated micro and RF lenses