The Sigma 14mm 1.8 DG HSM Art is the worlds first 1.8 prime lens at the 14mm focal length. This fast wide prime features the same largeaspherical element touted in the Sigma 12-24mm F4 Art to control distortion and create stunningimagery. An updated Hyper Sonic Motor (HSM) provides fast and accurate autofocus while 3 Premium FLD and 4 SLD glasselements control chromaticaberration andsagittal coma flare. Building on the highly reputable Art line,the Sigma 14mm 1.8 DG HSM Art is designed to resolve the latest high megapixel DSLR sensors. Like each and everyGlobal Vision Lens, the Sigma 14mm 1.8 DG HSM Art is handcrafted at our single factory inAizu, Japanand undergoes individualevaluation before leaving Sigmasfacility.