The Sigma Corporation recently introduced its new model of lens APO 50-150mm F2.8 II EX DC HSM. This is a large aperture telephoto zoom lens and is specially designed to match with digital SLR cameras with APS-C size sensors. The minimum focusing design comes close to 100cm/39.4in giving high image quality and aperture offered is about of F2.8. Packed in a lightweight structure and compact body the lenses are very handy and movable. It externally measures Ø76.5mm X 140.2mm / 3 in. X 5.5 and weights about 780g. The lens also incorporates The HSM (Hyper Sonic Motor) system which facilitates quiet operation and high-speed auto focusing with full time physical focus supersede by just turning the focusing ring. Other than all these features the lens also equips four SLD glass elements for improvement of chromatic oddness. Like other lens model from sigma this APO 50-150mm F2.8 II EX DC HSM model also comes with great features and would surely be liked by users. There is no word on the pricing and availability.