Buy from Amazon : http://www.amazon.com/gp/product/B001B1RFZA?tag=scratchandsti-20 <br /> <br />Sigma 50mm F1.4 EX DG HSM Standard Prime Lens for Sony DSLR Cameras <br /> <br />Designed for use with full frame digital cameras May also be used with smaller APS-c size sensors with a corresponding effective increase in focal length to about 90mm with most cameras <br />Designed with molded glass aspherical lens elements for superior corrections of chromatic aberration high image quality at all working distances <br />9-blade diaphragm creates a pleasant out-of-focus- effect on backgrounds
