Buy from Amazon.com : http://fave.co/191gd0b <br /><br />Sigma 70mm F/2.8 EX DG Macro Lens for Sigma Digital SLR Cameras<br /><br />Product Description : <br />70-200mm focal length <br />105-300mm equivalent focal length on APS-C cameras 140-400mm equivalent focal length on Four Thirds Micro Four Thirds cameras 112-320mm equivalent focal length on Canon APS-C cameras <br />F28 constant maximum aperture F22 minimum <br />Ring-type ultrasonic-type AF motor with full-time manual focusing <br />77mm filters <br />100m3937 minimum focus
