Provides ultra wide-angle coverage on the EOS 20D and Digital Rebel. Equivalent to a 16-35mm zoom, it offers excellent performance and optics designed

Provides ultra wide-angle coverage on the EOS 20D and Digital Rebel. 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.

Aperture range: f/3.5-22

Min focus: 9.5 inches

Full-time manual focus