Top features:- Great for landscape or reportage photography with a wide angle view - Fast aperture for better depth of field and low light shooting - Smooth, quiet autofocus allows discreet photography - Beautiful results from Super Spectra lens coating and special lens elements Great for landscape or reportage photographyWith its 20 mm focal length, the Canon EF f/2.8 USM Wide-angle Prime Lens gives you a broad 94° field of view - very similar to how human eyes perceive space.This makes it ideal for capturing stunning landscape images or shots of events as they unfold. Correcting for distortion, the lens creates a natural-looking perspective for architectural shots and interior scenes. Capture more details in each frame and deliver photos you'll be proud to display.Fast apertureShoot without a flash in low-light settings when it's not possible to set up a tripod - the Canon EF USM Wide-angle Lens offers an f/2.8 maximum aperture to improve light capture and depth of field.Smooth, quiet autofocusFocus quickly and accurately with Ultrasonic focusing. This autofocus mechanism offers superior holding torque to help you hone in on your subject without overshooting. It's quiet, so you won't disturb your subjects in discreet situations like weddings, on safari or at a conference.Adjust focus at any point - full-time manual override means you don't have to leave AF mode to fine-tune your composition.Beautiful resultsWith Super Spectra coating, your images will benefit from precise colour balance and excellent contrast for naturalistic results. Ghosting and flare from light reflections are offset to keep your images looking purer.Spherical and chromatic aberrations are offset by special aspherical and Super UD elements, so you don't have to worry about distortion and negative effects on image quality frame-wide.