The SmallRig Half Cage for Sony Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV 3639 is designed to provide accessory mounts and protect the camera. It includes two locking side plates and a 1/4"-20 screw at the bottom to secure the camera and prevent flexing. It allows access to the control wheels and buttons while maintaining the grip feel of a bare camera. Built-in, surrounding protective spacers shield the camera from scratches. 1/4"-20 threaded holes, ARRI 3/8"-16 mounting holes, and cold shoes support the top handle 2165, side handle 2093, monitor mount 2903, microphones, LED lights, and more.

The Arca quick release plate at the bottom is compatible with the DJI RS 2/RSC 2 and the quick release plate of the DJI RS 2/RSC 2 stabilizers for stabilizer shots. The optional HDMI cable clamp 3000 works with Alpha 7 IV/Alpha 7S III to protect the interfaces and ensure stable signal transmission during filming. Additionally, the cage features a built-in magnetic key that facilitates assembly and disassembly.