20 to 55mm Super35 Parfocal Zoom Lens and 50 to 125mm Super35 Parfocal Zoom Lens feature a relatively fast maximum aperture of T2.8 with an aperture range of T2.8 to T22. As you would expect from a cinema-style zoom, the lens is parfocal, meaning it holds focus throughout the zoom range. The internal focus design with floating elements virtually eliminates focus breathing. It covers a Super35 image circle, comes standard with an interchangeable PL mount, and includes an EF mount.

The 16-blade iris creates round out-of-focus highlights, which have a more natural appearance and contribute to the lens's natural-looking bokeh. The lens features cine-style gear rings on the focus, iris, and zoom lens rings, making it compatible with cine-style lens accessories such as follow focus units, lens motors, and lens control systems. The 95mm outer front diameter allows you to use a variety of compatible third-party matte boxes, and the lens has an 86mm filter thread. A lens support foot allows you to support the lens on rods to help reduce strain on your camera's lens port.