Sigma has announced three new lenses - the 17-70mm F2.8-4 DC MACRO OS HSM, 35mm F1.4 DG HSM and 120-300mm F2.8 DG OS HSM. Sigma has also organized all of its lenses into one of three product categories: Contemporary, Art and Sports. New Sigma Optimization Pro software and USB Dock are designed exclusively for the new lenses within the new product lines. The price and availability of the Sigma 17-70mm, 35mm, 120-300mm has yet to be announced.