The Blackmagic focus demand can be added to turn affordable photography lenses into amazing broadcast lenses! The focus demand has a USB‑C connection so it work with all Blackmagic Studio Camera 4K models. Each focus demand has 2 USB‑C ports, so you can daisy chain them then connect to the camera with a single USB connection. 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. The buttons can be customised so you can assign different camera functions to them! Plus, hardware is included for mounting the focus demand onto tripod handles.