From Sigma:
The SIGMA Corporation is pleased to announce that the ultra-wide-angle zoom lens "SIGMA 12-24mm F4 DG HSM | Art" and the ultimate lens for portraits and more "SIGMA 85mm F1.4 DG HSM | Art" have won TIPA Awards 2017.
BEST DSLR WIDE ANGLE ZOOM LENS: 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.
BEST DSLR PRIME LENS: SIGMA 85mm F1.4 DG HSM | Art
Aimed at portrait photographers and those who want to create dramatic shallow depth of field effects, this full-frame 85mm lens in SIGMA’s Art series employs SLD (Special Low Dispersion Glass) and one element with a high rate of anomalous partial dispersion and a high index of refraction. The lens contains a 9-bladed electronically controlled diaphragm, a hypersonic (HSM) motor for rapid and silent AF, and an AF system with 1.3X torque boost. Quality build features include a durable brass mount and a composite TSC barrel, a material known to provide consistent performance at extreme temperatures and is considerable lighter than other materials that would yield similar benefits.
B&H carries the Sigma 12-24mm f/4 DG HSM Art and Sigma 85mm f/1.4 DG HSM Art lenses.