 Sigma 12-24mm F4.5-5.6 II DG HSM lens : Sigma announces the new Sigma 12-24mm F4.5-5.6 II DG HSM lens. One SLD and four FLD glass elements compensate for color aberration and provide high image quality. Three glass mold elements and one hybrid aspherical lens give the Sigma 12-24mm advanced performance and a compact and lightweight construction. The Super Multi-Layer Coating reduces flare and ghosting. The new Sigma 12-24mm lens has superior peripheral brightness and provides sharp and high contrast images even at the maximum apertures. Incorporation of HSM (Hyper Sonic Motor) ensures quiet and high speed auto focus, while allowing full-time manual focus override.
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