SIGMA 12-24mm F4 DG HSM Art

Constructed with 16 elements in 11 groups, with FLD glass elements, an updated Hyper Sonic Motor with 1.3X torque for fast AF, and use of �the largest aspherical element in the industry�, this constant aperture wide angle zoom is designed for full-frame DSLRs but can also be used with APS-C sensor cameras to deliver a still impressive 18-36mm field of view (approximate, depending on camera model). With a minimum aperture of f/22 and close-focusing capability of 9.4 inches (24cm) at the 24mm focal length range, photographers can create unique images with startling depth of field, while the constant f/4 aperture and 9-bladed rounded diaphragm allows for outstanding bokeh effects.