This exciting new zoom lens provides ultra wide-angle coverage to the EOS 20D and Digital Rebel shooter. Equivalent to a 16-35mm zoom, it offers excellent performance and optics designed from the ground-up for digital SLR use. Three Aspherical lens elements, plus a Super-UD element, assure image quality. Its ring-type USM means fast and silent AF along with full-time manual focus. It focuses as close as 9.5 inches.
Excellent optical quality and true wide-angle coverage with select digital SLRs
Superior AF performance and speed, with full-time manual focus by simply turning ring
Close-focusing to 9.5 inches -- fill the frame with subjects as small as 3.6 x 5.4 inches
Relatively compact size and light weight for an ultra-wide zoom lens
Inner focusing system (no front element rotation); length doesn't change if zoomed
Circular aperture design -- natural highlights, even stopped down two stops