This lens is specially designed for select Canon Digital SLR cameras such as the EOS 20D, 30D and Rebel series cameras.
It's large circular aperture produces shallow depth-of-field, creating background blur that draws attention to the photographic subject.
Maximum aperature of f2.8 is maintained throughout the zoom range.
Image Stabilizer lens groups shift to compensate for camera movement so that the image appears steady on the image plane, ensuring clear, crisp images, even in dim light.
The lens construction includes UD and aspherical elements, which deliver impressive image quality throughout the entire zoom range.
With a Ring-type USM, inner focusing and new AF algorithms, this lens achieves autofocus quickly and quietly, and with full-time mechanical manual focusing, manually adjusting the focus is possible even in AF mode.
