Sigma Wide Angle 30mm f/1.4 EX DC HSM Autofocus Lens for Olympus Digital SLR (Four Thirds)

This is a fast F1.4 aperture standard lens for digital cameras. SLD (Special Low Dispersion and ELS (Extraordinary Low Dispersion) glass elements are used to obtain the best possible correction for magnification and chromatic aberrations, which are particular problems for digital cameras.From 40cm (15.7 ) minimum focusing distance to infinity, this lens creates very sharp images with high contrast. The HSM models provide quiet high-speed auto-focus shooting, as well as full-time manual focus. Large Maximum Aperture of F1.4 can perform superbly in a great range of applications, including snapshots, portraiture, indoor shooting and landscape photography. Large Maximum Aperture of F1.4, specially designed for Digital SLR Cameras This lens is perfectly suited for a wide range of subjects, portraits, indoor shootings etc. It is fast aperture makes this lens desirable for use with Digital SLR cameras.The shallow depth of field of this standard macro lens produces an outstanding image, sharply outlined from the blurred background. Most Appropriate Coating for Digital SLR Cameras The new multi layer lens coating and lens design reduce flare and ghost, which is a common problem with digital cameras and also creates an optimum color balance. HSM (Hyper Sonic Motor) The Hyper Sonic Motor (HSM) ensures a silent, high-speed AF function as well as full-time manual focusing capability for Sigma, Canon, and Nikon-D mount lenses.&ref=Become