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 large aspherical element touted in the Sigma 12-24mm F4 Art to control distortion and create stunning imagery. An updated Hyper Sonic Motor (HSM) provides fast and accurate autofocus while 3 Premium FLD and 4 SLD glass elements control chromatic aberration and sagittal 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.