• Versatile telephoto zoom is designed for full-frame Canon EF-mount DSLRs, however, can also be used with APS-C models where it provides a 112-320mm equivalent focal length range.

• Bright constant f/2.8 maximum aperture affords consistent performance throughout the zoom range and offers notable control over the depth of field for working with selective focus techniques.

• One fluorite element and five ultra-low dispersion glass elements noticeably reduce color fringing and chromatic aberrations for high clarity and color fidelity.

• Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions.

• An Optical Image Stabilizer helps to minimize the appearance of camera shake by up to four shutter speed stops to better enable working in low-light conditions and with slower shutter speeds. In addition to the single-shot standard IS mode, a second mode is also available that is optimized for panning.

• A ring-type Ultrasonic Motor (USM), along with an internal focusing system, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.

• The focus Limiter switch lets you constrain the focusing to two different ranges to suit different applications: 3.9'-infinity or 8.2'-infinity.

• The rounded eight-blade diaphragm contributes to a pleasing out-of-focus quality that benefits the use of shallow depth of field and selective focus techniques.

• As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions.

• The removable rotating tripod collar is included and benefits working with the lens atop a tripod or monopod.

• Compatible with optional EF 1.4X and EF 2X teleconverters.

MPN: 2751B002