Complete your cinematic creative with samyang 50mm hybrid aspherical lens h asp and glass aspherical lens asp uncoupled aperture and focus gear ring samyang optics vdslr lens line circular aperture with 8 blades standard manual focus vdslr lens samyang optics 50mm t15 as umc is a standard manual focus photo lens designed for full frame image sensor vdslr lens features samyang 50mm t15 as umc is carefully designed for professional film and video works