Sigma 14mm F2.8 EX Aspherical HSM AutoFocus Super Wide Angle Lens

The world's shortest focal length non-fisheye wide-angle AF lens with a fast F2.8 maximum aperture and a close focusing distance of only 7.1 inches (18cm). The lens also incorporates a built-in lens hood and a gelatin filter holder behind the rear lens element. The AF drive for Sigma SA, Nikon and Canon feature the ultra-quiet Hyper Sonic Motor (HSM).
Specifications
Construction 10 Groups /14 Elements
Angle of view 114.2°
F stop range 22
Closest Focusing Distance 18cm /7.1"
Maximum Magnification 1:5
Filter Size rear slip-in gelatin
Dimensions (Length x Diameter) 82 x 90.5mm / 3.2 x 3.3"
Weight 630g / 23.3oz.
For Canon
For Nikon