Focal Length : 20mm
Maximum Aperture : 2.8
Minimum Aperture : 22
Lens Construction : 11 elements in 9 groups
Diagonal Angle of View : 94o
Focus Adjustment : Rear focusing system with USM
Closest Focusing Distance : 0.25m / 0.8 ft.
Filter Size : 72mm
Dimensions (D x L) : 77.5 x 70.6mm (3.1" x 2.8")
Weight : 405 g (14.3oz)

Lens Cap
Lens Dust Cap