Full frame lens with APS-C compatibility Bright F2.8 aperture throughout entire zoom range Outstanding Art line image quality Virtually zero distortion at infinity focus Exclusive low-dispersion glass elements Minimizes flare and ghosting Dust- and splash-proof construction with weather sealing Fast AF with full-time manual focus 9-blade rounded diaphragm Rugged brass bayonet mount Compatible with Canon Lens Aberration Correction

• For the Art line SIGMA began development simultaneously of two ultra-wide-angle lenses offering the key focal length of 14mm one prime and one zoom.
• enhances the corrective effect of the FLD and SLD glass.