Go Behind the Evolution of Canon EF Lens Technology

Arguably the best on the market, Canon EF (Electronic Focusing) lenses have evolved to a level of near perfection. Optimal and exact construction of synthetic fluorite combined with scientific precision has made EF lenses a near flawless option. Take a look into the construction of these ingenious products through the eyes of Canon's dedicated team of technicians.

For nearly 30 years, Canon has made significant strides in their EF lenses. It is incredible to see the progression that optics has made over the years to improve imagery, reduce unwanted flares, and cut down on weight. From actuation to optics, and the elements that make up the aspherical glass, the level of research and engineering that go into lenses definitely warrants the daunting price tag. Far too often, and rightfully so, we find ourselves focusing on the principles of photography rather than the science within the lens. This informative advertorial video explains Canon's pursuit for the "perfect lens" through engineering, research, and development.

Originally introduced in 1987, Canon EF became the standard mount for Canon DSLR cameras. This setup operated on a "leverless and plungerless" electronic communication between camera and lens, thus making the lens an intelligently operating article of hardware that would come to revolutionize Canon photography. Including the EF-S and Cinema series, Canon claimed to have created its 100 millionth EF lens last April The milestone was achieved with the EF 200-400mm f/4L IS USM Extender 1.4X, which is also featured in this informative video.