Canon Celebrates Production of 60 Million EF Lenses
Canon U.S.A., helps celebrate the achievement of a new EF lens-manufacturing milestone with the production of Canon’s 60-millionth lens, an EF 70-300mm f/4-5.6L IS USM. First introduced in March 1987, along with Canon’s EOS SLR camera system, the EF lens system has over the years featured a range of innovative proprietary technologies to lead the industry. These include such world’s firstsi as the Ultrasonic Motor-powered lens (USM), Image Stabilizer (IS) to compensate for the effects of camera shake, Subwavelength Structure Coating (SWC) anti-reflection technology, and a super-telephoto lens that employs a diffractive optical element. Last year, Canon successfully launched the EF 70-200mm f/2.8L IS II USM, featuring outstanding optical performance and Image Stabilization.
First introduced in 1987, the EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for “Electro-Focus”: automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens. Mechanically, it is a bayonet-style mount, and all communication between camera and lens takes place through electrical contacts; there are no mechanical levers or plungers. Canon’s current EF lens lineup is comprised of 65 models ranging from super-wide-angle lenses to super-telephoto zoom lenses, catering to the varying needs of photographers from first-time users to advanced-amateurs and professionals.