The EF 28mm f/1.8 USM Lens from Canon
is a wide-angle prime lens with a fast maximum aperture of f/1.8
enabling effective low-light imaging and shallow depth of field focus.
An aspherical lens element reduces aberrations and improves image
sharpness at the frame edges. The ultrasonic focus motor (USM) provides
fast and quiet autofocus action, which is especially important when
shooting video. Manual focus via the rubber focus ring is smooth and