Sigma 17-70mm f2.8-4 DC Macro OS HSM-C lens for Pentax
Sigma 17-70mm f2.8-4 DC Macro OS HSM-C lens for Pentax With a focal range that covers all your everyday needs along with macro functionality,this large aperture APS-C zoom lens combines superior performance with a conveniently compact form With its wide zoom range, this lens has a focal range equivalent to 25.5-105mm on a 35mm lens. Thanks to Sigma's latest technologies, it's exceptionally lightweight...