This exciting new zoom lens provides ultra
wide-angle coverage to the EOS crop senor shooter. (40D, 50D, 7D,
Digital Rebel series). 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.
Note: This EF-S Lens is not compatible with full frame camera bodies: 5D, 1D, etc.