Sigma 20mm f/1.4 DG HSM Art Lens For Canon EF TOWER and its IP67 rating means

and its IP67 rating means it's waterproof and dustproof for worry-free use at the beach

Scene Intelligent Auto

Flash head tilts with click-stops at -7°

aperture F16 Aperture control Number of blades : 9(rounded diaphragm opening) Step size : 1/3step (19 steps)) Focus range 35cm - ∞ Max

A low dispersion element helps reduce chromatic aberrations and colour fringing

Sigma 20mm f/1.4 DG HSM Art Lens For Canon EF TOWER and its IP67 rating meansSigma 20mm f 1. 4 DG HSM Art Lens For Canon EF EF Mount Lens Full Frame Format Aperture Range: f 1. 4 to f 16 Two FLD Elements and Five SLD Elements Two Aspherical Elements USB DOCK Compatible The Sigma 20mm f 1. 4 DG HSM Art Lens For Canon EF is an ultra wide 20mm full frame lens with a super fast maximum aperture of f1. 4. The fast wide open aperture and wide focal length makes the lens an excellent choice for landscapes, nightscapes,