SmallRig Half Cage for Sony Alpha 7R V/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 one 1/4"-20 screw at the bottom to lock the camera and prevent deflection and gives access to dials and buttons while retaining the grip experience of a bare camera. Built-in all-around protective spacers protect the camera from being scratched. 1/4"-20 threaded holes, ARRI 3/8"-16 locating holes, and cold shoes support top handle 2165, side handle 2093, monitor mount 2903, microphones, LED lights, etc. Arca quick release plate at the bottom is compatible with DJI RS 2 / RSC 2 / RS 3 / RS 3 Pro and the quick release plate of DJI RS 2/RSC 2 stabilizers for stabilizer shooting. Optional HDMI Cable Clamp 3000 works with Alpha 7 IV/Alpha 7S III to protect interfaces and ensure stable signal transmission during filming. Besides, the cage comes with a built-in magnetic spanner that facilitates disassembly and assembly.