Sigma 50-200mm f/4.0-5.6 DC IF SLD Optical Stabilized (OS) Lens with Hyper Sonic Motor (HSM)
Product Description : Optical Stabilization - Sigmas own OS System Inner Focusing System - Eliminates front lens rotation suitable for use wcircular polarizing filters Compact Telephoto Zoom Lens High Image Quality - SLD glass elements with inner focusing High Magnification - 1 - 45 magnification exclusively designed for digital SLRs