Venus Optics Laowa 12mm T2.9 Zero-D Cine Lens (PL Mount) The 12mm cine lens features a maximum aperture of T2.9 with 16 elements in 10 groups. Its 7-blade aperture provides a soft, pleasing bokeh, a shallow depth of field with little to no distortion, and a 7″ close focus distance. The focus and aperture rings feature industry-standard 0.8 pitch gearing that will accommodate standard cine follow focus motors. The 102mm front diameter can be stepped up to 114mm with the included adapter to fit industry-standard matte boxes to prevent glare and reflection, as well as to add filters. Focus, aperture, and depth of field markings are in feet on the side of the lens to aid focus pullers.