Canon
Canon — history
Canon is an imaging and precision-equipment company whose camera work began in 1933. The present corporation gives 10 August 1937 as its formal founding date because that is when Precision Optical Industry Co., Ltd. was incorporated. Before that incorporation, the Precision Optical Instruments Laboratory had already built camera prototypes and arranged production of the Hansa Canon. The company became Canon Camera Co., Inc. in 1947 and Canon Inc. in 1969. Serenar was its early in-house lens name; Canon later used its own name across lenses, bodies, office machines, medical equipment, and industrial systems. EOS identifies a camera system, not a separate company, and its name spans film, digital SLR, mirrorless, and cinema products.
Goro Yoshida wanted to build a Japanese 35mm camera comparable to Leica and Contax. With Saburo Uchida and Takeo Maeda, he established the Precision Optical Instruments Laboratory in Tokyo in November 1933. The Kwanon, named after the Buddhist figure Kannon, was a prototype rather than a regular production model. The name Canon was chosen before commercial launch and was associated with a standard or rule of judgment. Omiya Shashin Yohin supplied the Hansa sales trademark because the laboratory lacked its own distribution channel. Canon's current Camera Museum dates the Hansa Canon to February 1936 while acknowledging that an October 1935 date appears in other accounts.
The Hansa Canon was not a wholly internal Canon product. Canon's own history says Nippon Kogaku supplied the Nikkor 50mm lens, the lens mount, the optical systems for the viewfinder and rangefinder, and the rangefinder mechanism. The Canon predecessor made the main body, focal-plane shutter, and rangefinder cover and assembled the camera. This arrangement gave a small body-making laboratory access to an established optical manufacturer and gave Nippon Kogaku a civilian outlet for lenses.
After incorporation in 1937, Precision Optical Industry pursued its own lenses under the Serenar name. Wartime production and damage disrupted the work, and the first postwar Canon J II could be supplied with either a Serenar or a Nikkor because raw materials and production were unstable. The company received permission to resume camera production in October 1945, adopted Canon Camera Co., Inc. as its legal name in 1947, and stopped depending on Nippon Kogaku lenses in 1948 after establishing its own Serenar production. Rangefinder cameras supported exports, while cine cameras, broadcast optics, and early business equipment began broadening the engineering base beyond still photography.
Canon entered 35mm SLR production with the Canonflex and R mount in 1959. FL followed in 1964, retaining a breech-lock approach while adding stopped-down through-the-lens metering support. Materials development became part of lens design. A program started in 1966 produced synthetic fluorite crystals large enough for telephoto elements and specialized methods for polishing the delicate material. The FL-F300mm f/5.6 reached the market in May 1969. By then Canon was also making calculators and developing copying technology. The change from Canon Camera Co. to Canon Inc. on 1 March 1969 acknowledged that cameras were no longer the whole business.
The FD system and Canon F-1 arrived in 1971. FD preserved important mechanical lineage from FL but added maximum-aperture information for full-aperture metering and future automatic exposure. Fourteen lenses appeared together, and Canon made more than 180 accessories available around the professional body. New FD, introduced in 1979, is often treated as a separate mount because its lens attachment feels like a conventional rotating bayonet. Canon's own history is more precise: the redesigned fit-and-lock mechanism made mounting faster while retaining interchangeability with earlier FD cameras. FL, FD, and New FD therefore belong to a related mechanical family, but metering, aperture, and mirror-clearance limits still require model-level checks.
Electronics entered both product design and manufacturing. The AE-1 of 1976 used a CPU to coordinate shutter-priority automatic exposure and was developed alongside automated production methods intended to reduce parts and assembly cost. The A-1 extended digital control to several exposure modes. The T-series pushed further, and the T80 of 1985 used dedicated AC lenses for autofocus, but it did not provide the architecture Canon wanted for a long-lived AF system. Outside photography, Canon developed plain-paper copiers, semiconductor lithography equipment, and laser printers; in the 1980s it began supplying printer engines to Hewlett-Packard. These businesses shared precision mechanics, electronics, imaging, and automated manufacturing with the camera division.
Canon made a deliberate compatibility break in 1987. The EOS 650 and EF lenses used a new 54mm mount in which body and lens communicated electronically. Aperture control and autofocus commands no longer depended on mechanical levers or a body-driven focus shaft, and each EF lens carried an appropriate focus motor. Canon's own development history records internal concern about users invested in FD equipment, but the company judged that a clean electronic interface would provide more room for future control and motor technologies. EF is therefore not an autofocus version of FD. Ordinary FD lenses do not mount natively on EOS bodies, and adapters cannot be treated as restoring the communication or optical behavior of a native EF lens.
The EF architecture supported both long technical continuity and globalized production. The EOS-1 brought the system into professional use in 1989, and later bodies refined focus sensing, film transport, sealing, and exposure control. Ultrasonic motors, stabilization, electronic aperture, and lens data were added without replacing the mount. Canon manufactured EF lenses at Utsunomiya, Oita, Taiwan, and Malaysia, with product and factory assignments varying by model and period. A Canon nameplate therefore establishes the system owner, not a permanent single place of manufacture. Current Canon material still identifies Utsunomiya as its principal lens plant while a separate Utsunomiya optical-products plant makes semiconductor and display lithography systems.
Digital imaging preserved EF while changing nearly everything behind the mount. The EOS D30, marketed in October 2000, used a Canon-developed 3.25-megapixel CMOS sensor and Canon signal processing in a body compatible with EF lenses and EOS accessories. The EOS-1D and full-frame EOS-1Ds extended the digital line for professional work, and the lower-priced EOS 300D widened access. Canon continued selling the EOS-1V film SLR until 2018, though the sales-end notice does not give the last production month. The separate EF-M mirrorless system appeared in 2012 for APS-C cameras. It was later removed from the active lineup, but no single Canon announcement located here formally dates the end of the entire system.
Canon dating evidence is useful when its limits are respected. Exterior serial numbers do not provide one manufacturer-wide year code. Many bodies and lenses from about 1960 through the early digital period carry a separate alphanumeric stamp. Before 1986, specialists read the first letter as a year in a cycle beginning A equals 1960, followed by month and internal digits; a trailing factory letter appears on many bodies but is not universal on lenses. From 1986, a common form places factory first, year second, then two month digits and internal digits. UR0902 is read as Utsunomiya, September 2003. Because the alphabet repeats every 26 years, the model's official marketed dates must resolve the cycle.
Later ten-digit lens serials are less secure. Independent researchers have proposed that the first two digits contain a rolling month value, but the table was reverse-engineered from observed equipment and is described by its compiler as a work in progress. It should not be presented as a Canon-published decoder. In 2018 Canon introduced the RF system with a 54mm diameter, 20mm flange distance, and 12 electrical contacts. Adapters let RF bodies use many EF and EF-S lenses, but RF, EF-M, and EF remain distinct native mounts. Canon continues as a global printing, imaging, medical, and industrial company, so the camera story is best understood as one branch of a larger organization built around optics, sensors, precision manufacture, and information processing.