Ultra-wide, and fast too!
Ultra-wide 16mm focal length.
Clickless aperture control from T2.2 (f2.0) to T22.
0.8 mod pitch gears for aperture and focus control.
Minimum focus distance of 0.2m.
Available in Canon EF/M, Nikon F, Sony E/A, Pentax K, Olympus/Panasonic Four Thirds, Samsung NX and Fujifilm X mounts.
83.1 degree angle of view.
13 lens elements in 11 groups (1 ED, 1 aspherical and 1 hybrid aspherical).
8 diaphragm blades.