The sony e mount samyang 24mm f14 ed as if umc lens is a prime wide angle lens designed for both full frame and aps c sized sensors when used with an aps c sensor the 35mm equivalent focal length is 36mm as a standard wide angle focal length this lens is well suited to working in a variety of situations ranging from landscape to street photography its fast f14 maximum aperture is further beneficial to working in low light conditions and for greater control over selective focus and shallo