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 Rounded diaphragm and 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.
• Effective distribution of these high-refractive-index glass elements further