Sigma introduced 50mm F1.4 EX DG HSM medium telephoto lens which aimed for Four Thirds System camera. Sigma 50mm F1.4 EX DG HSM able to capture 100mm equivalent angle of view. This lens has Super Multi Layer Coating to reduce flare and ghosting. It Superior optical performance able to reach the focusing range and the 9 blades diaphragm to produce stunning blur. It also include HSM (Hyper Sonic Motor) for high speed AF with manual focusing ability. Sigma 50mm F1.4 EX DG HSM provide molded glass aspherical lens for coma aberration correction.