The Sigma 50mm F1.4 EX DG HSM is a new large aperture prime lens for the Four Thirds system. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed AF as well as full-time manual focus override. It effectively becomes a 100mm medium telephoto lens on Four Thirds cameras. Price and availability of the Sigma 50mm F1.4 EX DG HSM for Four Thirds to be confirmed.

Sigma Press Release

Large aperture, medium telephoto lens for the Four Thirds System

2008.9.23 - This large aperture lens becomes a medium telephoto lens offering 100mm equivalent angle of view on Four Thirds cameras. The optimum optical design and molded glass aspherical lens elements provide excellent correction of coma aberration. It ensures superior peripheral brightness and provides sharp, high contrast images even at the maximum aperture. The Super Multi Layer Coating reduces flare and ghosting. Superior optical performance is ensured throughout the focusing range. The rounded 9 blades diaphragm creates an attractive blur. This lens incorporates HSM (Hyper Sonic Motor), ensuring a quiet and high speed AF as well as full time manual focusing capability.

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