Canon EF-M 11-22mm f/4-5.6 STM Lens Focal length & maximum aperture: 1122mm f/45.6 Lens construction: 12 elements in 9 groups Diagonal angle of view: 10210'6330' Focus adjustment: AF with full-time manual Closest focusing distance: 0.49 ft./0.15M.Circular aperture (7 blades) helps deliver beautiful, soft backgrounds..Maximum magnification of 0.30x at the telephoto end Filter size: 2.2 in./55mm diameter Max. Diameter x length, weight: approx. 2.4 x 2.3 in., approx. 7.8 oz./ 60.9 x 58.2mm, approx. 220G