The canon ef m 22mm f2 stm lens is a pancake lens designed for use with the canon eos m compact system camera this ef m mount lens is a great travel lens ideal for a wide range of subjects and offers a maximum f20 aperture to ensure stills and movies can be captured handheld even in low light whether youre shooting landscapes or portraits the canon 22mm lens is a great all around travel companion and features a minimum focusing distance of 015m focusing is smooth and quiet with movie ser