Steps:
1.Turn off the electronic level in the menu.
2.Press the INFO button continuously (don't press it too fast), until the desired screen is displayed.
3. This turns off the Canon 90D level.
Canon:
Canon (Canon), a Japanese integrated group of world-leading producers of imaging and information products, has globalized and expanded its business into a wide range of fields through years of unremitting efforts since its establishment in 1937. Canon's product lineup*** is spread across three main areas: personal products, office equipment and industrial equipment.
The main products include 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 and over 100,000 employees worldwide.
On March 9, 2016, Japan's Toshiba Corporation held a board of directors and finally decided to sell its Toshiba Medical Systems Corporation to Canon, which made a purchase offer of 700 billion yen (about 40.5 billion yuan). Canon officially announced the EOSR system, EOSR full-frame specialized micro and RF lenses.