The much-anticipated Sigma 85mm 1.4 DG HSM Art lens is now available for the Nikon mount. Sigma announced the new art lens at Photokina this fall. Most photographers consider the 85mm as a go to lens for portrait photography. Early reviews have been fabulous. So far, everyone who has tested the new 85mm 1.4 DG HSM Art lens has been impressed, particularly with the quality optics and performance. Some reviewers consider it as an upgrade alternative to the Nikkor 85 mm 1.4 lens. Sigma’s new lens is designed for high quality portraiture. It features a totally revamped optical design that incorporates 14…