Covers Full Frame, 46.7mm Image Circle, PL Mount, Suitable for 8K Image Capture, 114mm Front Lens Diameter, Fast T1.5 to T22 Aperture, Virtually No Lens Breathing, Clickless 9-Bladed Iris, Weighs 6.77 Pounds, Integrated Lens Support Foot. The PL mount Tokina 135mm T1.5 Cinema Vista Prime Lens with focus scales marked in feet provides an image circle that more than covers full-frame sensors and is designed to provide sharp images even when recording images at 8K resolution. This 135mm focal length lens shares the same form factor lens gear position and front barrel diameter as the other Tokina Cinema Vista prime lenses enabling quick on-set lens changes. It features a maximum T-stop of 1.5 useful when shooting in low-light situations or when you want to capture that exceedingly shallow depth of field look. The use of aspherical elements and lens coatings help to greatly limit chromatic aberrations. The 9-bladed iris provides round out of focus highlights for a natural-looking bokeh. The lens is designed to minimize focus breathing and features geared manual focus and iris rings. Markings on both sides of the lens barrel make it readable from either side of the camera. The lens features a shimmable PL mount and the front of the lens is 114mm in diameter with a built-in 1/4-20 support foot that helps support the lens with the aid of an optional 1/4-20 rod-mounted lens support (not included).