This Canon EF-S series lens offers fast, quiet autofocus, and a versatile focal range for shooting with compatible Canon digital SLRs, such as the EOS T1i and 50D cameras. Its Image Stabilization (IS) technology also lets you take sharp, in-focus photographs in all sorts of lighting conditions.
Image Stabilization for better pictures
We've all taken a picture that turned out blurry because our hands moved a bit. Canon's Image Stabilization elegantly solves this problem. Built-in vibration sensors steer a special set of optical elements inside the lens, neatly compensating for camera movement and stabilizing the image. You get much sharper pictures even in low-light conditions where hand motion can easily cause blurred images with a regular lens. IS lenses are favorites with photographers who don't like to carry along a tripod on every excursion, but who require crisp photos as a matter of course.
Speedy, near-silent autofocus and versatile shooting
High-tech Image Stabilization isn't the only advantage provided by this lens. A built-in ring-type Ultrasonic Motor makes autofocus very fast and very quiet. We also like its extra wide-angle picture-taking capability you can really move in close to your subjects for cool looking closeups. Plus, wide-angle shooting makes it easy to snap large group shots of folks in tight quarters, or record sweeping panoramic landscapes.