Sigma - 17 mm to 70 mm - f/2.8 - 4 - Zoom Lens Docking Stations The lens also features a

The lens also features a steel barrel design with anti-reflective multicoated glass

A large-aperture

These cables feature the latest in design and technologies such as Micro-Lite cable technology

In addition

8-4 DC Macro OS HSM is the practical zoom

Sigma - 17 mm to 70 mm - f/2.8 - 4 - Zoom Lens Docking Stations The lens also features aSigma'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,