Focal length: 12 mm
Aperture range: f/2.8 – f/22
Focusing range: 0,18 m (0.59 ft) – ∞
Number of elements/groups: 11/8
Angular field, diag./horiz./vert.: 99° / 89° / 66°
Coverage at close range: 220 x 144 mm (8.66 x 5.67″)
Filter thread: 67mm
Dimensions (with caps): 81 mm (3.19″)
Diameter of focusing ring: 65 mm (2.56″)
Weight: 260 g (0.57 lbs)