Its 9-blade iris provides a soft bokeh, and its sharp high-contrast glass allows for low distortion and chromatic aberrations. The lens housing is made from durable metal, it has gear rings that accept standard cine follow focus gears, features an 82mm filter thread, and it has an 85mm front diameter to fit a wide variety of matte boxes.

Close-focus 1:1 reproduction at 11.8" working distance Fast, wide T2.9 to T32 aperture range 
Full-frame 35mm format support, 4K ready 
Minimized focus breathing 
Smooth, de-clicked, 9-blade, curved iris for beautiful bokeh 
Durable all-metal, cine-style housing with geared focus and aperture rings for use in follow focus systems 
Features an 82mm filter thread and an 85mm front diameter