28mm F 1.8 Usm | Canon Ef

Ring-type Ultrasonic Motor (USM) for fast, quiet autofocus with full-time manual override.

10 elements in 9 groups, including one aspherical element to reduce distortion. canon ef 28mm f 1.8 usm

The Canon EF 28mm f/1.8 USM Go to product viewer dialog for this item. Ring-type Ultrasonic Motor (USM) for fast, quiet autofocus