The lens's lightweight design is also optimized for video and is balanced along its axes for use with gimbals and cages. Again, the versatile angle of view and close working distance benefit the full range of a shot list, from close-ups to establishing shots. An STM stepping motor suppresses focus breathing and delivers fast and quiet autofocus that won't interrupt audio gathering. Additionally, you can customize the clickless control ring to quietly adjust the aperture or ISO during recording.