Canon 40mm f2.8 STM is an Auto Focus (AF) Standard Prime
lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount cameras.
Canon 40mm f2.8 STM is compatible with cameras that have Canon EF lens mount.Some of the latest released cameras with Canon EF lens mount are Canon 1D X III
, Canon 6D MII
and Canon 5D MIV
Max sensor coverage of Canon 40mm f2.8 STM is 35mm FF.
Canon 40mm f2.8 STM has a fixed focal lenght of 40mm. When mounted on a 35mm FF format camera, it provides an 35mm (FF) equivalent of 40mm.
Canon 40mm f2.8 STM has a max aperture of F2.8 and a minimum aperture of F22.0.