The Sigma 20mm T1.5 Fully Luminous FF High-Speed Prime Lens offers high-quality imagery along with plenty of customization options when paired with an ARRI PL cine camera. It covers an image circle of a Super 35mm-size sensor. The full control over the focus and iris allows you to decide the final look of each shot. These control rings are ergonomically placed to give tactile control over adjustments. Moreover, the scale markings in meters make it easy to adjust the parameters. You can rotate the focus ring up to 180° for obtaining flexibility during focus adjustments. The click-less iris ring enables you to decide between shallow and greater depths of field. Each of these rings has a resin dampener that absorbs noise when you turn them till the end. The 9-blade diaphragm does its job of creating a cinematic bokeh effect to make your medium or close-up shots stand out. You can open the aperture up to the T-stop value of 2 for working in dim light. The cine-standard 0.8 Mod gear pitch allows you to use different accessories like the follow focus unit. Different types of matte boxes can be attached to the lens as it has a 95mm front diameter. The top thread accepts 82mm circular filters. The metal body of the lens is sealed to resist dust and water splashes.