Canon has celebrated an lens-manufacturing milestone with the production of the company's 100-millionth EF-series interchangeable lens for EOS cameras - an EF200–400mm f/4L IS USM Extender 1.4x - today.
Launched in March 1987 along with the EOS SLR camera system, Canon's proprietary EF lenses have continued to evolve since their introduction, such as incorporating the Ultrasonic Motor (USM), Image Stabilizer (IS) technology, and a multi-layered diffractive optical (DO) element. In May 2013, Canon introduced the EF200-400mm f/4L IS USM Extender 1.4x, the world’s first super-telephoto zoom lens with a built-in 1.4x extender that makes possible a 200–560 mm focal length range.
In recent years, in addition to renewing such models as super-telephoto lenses ideal for sports and nature photography along with zoom lenses that offer a bright f/2.8 maximum aperture throughout the entire zoom range, Canon has launched multiple entry-class interchangeable lenses equipped with a stepping motor (STM) that delivers smooth and quiet autofocus performance during video recording.
Presently, Canon's extensive EF lens-series lineup currently comprises a total of 89 models.
In addition to enhancing its lens offerings, Canon has expanded the optical technologies incorporated in its EF lenses into new fields, launching EF Cinema Lenses for digital cinematography in January 2012, and EF-M lenses for compact-system cameras in September 2012. Also, in February 2014, Canon surpassed the 70-million-unit mark for its combined production of its film and digital EOS-series interchangeable-lens cameras.