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Having been in Canon's lineup for more than 20 years, the Canon EF 100mm f/2 USM lens is a highly practical medium telephoto prime lens great for a range of applications including portraiture. It's constructed of 8 elements in 6 groups, and delivers sharp and clear images at all apertures. The fast f/2 maximum aperture allows effective photography in low light conditions, and provides shallow depth of field control. It also features an ultrasonic autofocus motor (USM) built in for fast, smooth and quiet AF action, plus full-time manual focusing for fine tuning anytime if it’s necessary. Best of all, with a compact, low weight design, this lens can easily fit into your kit bag and travel effortlessly.

MTF Chart

Fast Maximum ApertureThe f/2 maximum aperture is great for low light photography, and provides shallow depth of field control for producing beautiful background blur.
Ultrasonic MotorThe Ultrasonic Motor (USM) delivers fast and quiet autofocus performance.