USB ports allow for connecting the focus demand to the camera and daisy chaining to the zoom demand. The three control pins expand the diameter of the control surface to let you make finer focus adjustments with the tip of a finger. You can change the focus direction in the menu by setting it either forward or reverse.

Rotate the focus wheel clockwise to focus on subjects closer to the lens, or counterclockwise to focus on subjects further away. The buttons can be customized so you can assign different camera functions to them! Plus, hardware is included for mounting the focus demand onto tripod handles. The design has an incredibly precise feel and so you get very fine lens control, and you can frame and adjust the lens without taking your hands off the tripod handles. Each unit features two USB‑C ports, so you can daisy chain it to a zoom demand unit then connect to the camera with a single USB connection.

The focus demand can be added to turn affordable photography lenses into amazing broadcast lenses! The unit has USB‑C connections so it works with all Blackmagic Studio Camera 4K models.

It eliminates the need to reach for the lens because you can control the lens direct from the tripod handles, just like a true broadcast lens. The Focus Demand helps get accurate focus control with Blackmagic Studio Cameras.

Blackmagic focus demand