Sigma - 17 mm to 70 mm - f/2.8 - 4 - Zoom Lens Docking Stations 4 DG HSM has been

4 DG HSM has been redesigned and reengineered to set a new standard for the Art line

In addition

8-4 DC Macro OS HSM is the practical zoom

Ultra-lightweight design is comfortable to wear during any activity

ATEN's All-in-One bonded KVM cables are designed to deliver superb video quality and error-free transmission for your high-resolution applications

Sigma - 17 mm to 70 mm - f/2.8 - 4 - Zoom Lens Docking Stations 4 DG HSM has beenSigma's 17 70mm F2. 8 4 DC Macro OS HSM is the practical zoom! A large aperture, standard zoom lens for digital cameras with an open aperture value of F2. 8 (at 17mm) and covers the most frequently used focal lengths. With an aperture fast enough to be used in many light situations, its close focusing for use with very small object and its outstanding optical performance make this an ideal all around lens for landscapes, portraits, still life studies,