22Sep/110
Sigma 70-200mm f/2.8 APO EX DG HSM OS FLD Large Aperture Telephoto Zoom Lens for Pentax Digital
www.amazon.com Sigma 70-200mm f/2.8 APO EX DG HSM OS FLD Large Aperture Telephoto Zoom Lens for Pentax Digital Focal length: 70-200mm Dimensions: 86.4mm x 197.6mm (3.4in x 7.8in) Optional accessories: Sigma DG Circular Polarizer 77mm Designed for use with full frame digital SLR cameras. May also be used with smaller APS-c size sensors with a corresponding effective increase in focal length to about 100 to 300mm with most cameras Offers Sigma's OS System (Optical Stabilization) allowing handheld photography even in low-light situation HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus FLD glass elements with performance equal to fluorite glass for compensate for color aberration www.amazon.com