The Tokina 50mm T1.5 Cinema Vista Prime Lens with a PL mount and with focus scales marked in feet, provides an image circle that more than covers It 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 is a 50mm focal length, and shares the same form factor, lens gear position, focus rotation, and front barrel diameter as the other Tokina Cinema Vista prime lenses. This makes on-set lens changes a fast and efficient operation. 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.