A 50mm prime lens with fast f14 aperture and m mount for use with canons eos m compact system camera the lens gives a 462 degree field of view and thanks to its high brightness value of f14 it comes as a great tool in poor lighting conditions ensuring clear image quality and a small depth of field optics of the lens consists of nine lens elements arranged in six groups including one aspherical and one hybrid aspherical lens element to ensure high contrast and faithful colour reproduct