A 50mm prime lens with fast f14 aperture and sony e mount for use on the sony alpha range of compact system cameras such as the full frame a7 models and aps c a6000 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