[MASTER KIT FOR SONY A7S]: SmallRig Camera Cage Kit 3009 is specially designed for Sony A7S III /A1. The kit includes an aluminum full cage, a NATO top handle, an HDMI cable clamp, a NATO rail. It maintains access to your camera's controls and hot shoes. [FORMFITTING FULL CAGE]: The camera cage features numerous 1/4"-20 and 3/8"-16 mounting threads, built-in NATO rail and cold shoe mount for accessories. Made of premium aluminium alloy, the included cage is a solid piece of metal that is highly resistant to oxidation and stands the test of time. [NATO TOP HANDLE]: The top handle mounts on the NATO rail, and provides an abundance of 1/4'' & 3/8'' mounting points and a built-in cold shoe mount to attach different SmallRig rigs on it for additional attachment options and DIY operations. [HDMI CABLE CLAMP]: The HDMI clamp attaches to the side of the cage using a 1/4"-20 screw and two anti-twist pins, which prevents the camera's HDMI cable from accidentally disconnecting. [TOP RECOMMENDATION]: When working with the camera field monitors, you could fix it to the top of cage kit 3009 with SmallRig Monitor Mount 2905. Also, you could attach more accessories, like the microphone or SmallRig Articulating Arm 2070, etc.