Canon
EF 90-300mm f/4.5-5.6 USM
Telephoto Zoom Lens
The 90-300mm f/4.5-5.6 USM from Canon is a compact, lightweight telephoto zoom lens for Canon EF-mount. It uses a new AF algorithm to offer one of the fastest autofocus speeds for its class. The communication speed between the lens and the camera is also improved thanks to a new high-speed CPU.
All the lens elements are manufactured from environmentally-friendly lead-free glass. A redesigned electromagnetic diaphragm (EMD) provides an aperture which is nearly circular at the widest settings for an improved out-of-focus background effect. The lens also features a micro USM (Ultrasonic Motor) motor for near-noiseless operation.