The effective focal length of Canon 10-22 EF-S is equivalent to a 16-35mm used in 35mm film format SLRs.
Exceptionally small and lightweight for maximum mobility.
Superb image quality.
Super Spectra coatings.
Circular aperture.
Very close focusing distance.
13 elements in 10 groups.
6 diaphragm blades.
Minimum aperture 22-27.
Closest focusing distance 9.5 inches / (m) 0.24.
Maximum magnification 0.17 (at 22mm).
Distance information.
Filter thread diameter 77mm.
Maximum diameter x length 3.34 x 3.6 inches / 83.5 x 89.8mm.
Weight 13.6oz. / 385g.