Top features: - Add perspective to your photography with wide-angle zoom - Achieve the best colour balance with minimal lens flare - More accurate autofocussing thanks to ultrasonic motors - Achieve professional-style blurred background shots Add perspective to your photography with a wide-angle zoomA wide focal length range provides lots of flexibility when it comes to taking shots with superb image quality. With a wider angle than most lenses, it captures more of the scene to add a greater sense of space and perspective to your photography.Achieve the best colour balance with minimal lens flareCanon's Super Spectra coating reduces lens flare and picture distortion. The coating allows up to 99.9% of light to pass through the CMOS camera sensor to minimise ghosting, where a faint second image appears in a photo. The coating ensures a consistent colour balance and sharper images.More accurate focussing thanks to ultrasonic motorsAn ultrasonic motor makes focussing faster and more accurate in near silence. Manual override is available too, making it possible to adjust focus without leaving autofocus mode.Achieve professional-style blurred background shotsA circular aperture blurs out of focus subjects within your image, and isolates the subjects that are in focus to help you achieve professional-looking background blur shots.