SmallRig 3594 (SR3594) Cage for SonyAlpha 7S III/Alpha 7 IV/Alpha 7R IV/Alpha 1 with VG-C4EM Battery Grip SmallRig Cage for Sony Alpha 7S III/Alpha 7 IV/Alpha 7R IV/Alpha 1 with VG-C4EM Battery Grip 3594 is designed to protect the camera and provide accessory mounts. Secured by one 1/4-20 screw at the bottom and two side lock adapters via the shoulder strap holes on each side. The cage maintains access to buttons card slots battery door and flip screen. Featuring 1/4-20 threaded holes and ARRI 3/8 -16 locating holes to attach Top Handle 1638 and 2165 for a low-angle shot Monitor Mount 2904 and 2903 as well as Side Handle 2093. Cold shoe mount on the top supports microphones or LED lights and NATO rail on the left fits NATO Handle 2427 and 3260. Two 1/4-20 threaded holes on the front bottom support Rod Clamp 1943 for matte box follow focus lens support etc. one of the front threaded hole features a small locating hole suits Rod Clamp 3276 for follow focus. Arca quick release plate enables quick switch between tripod and handheld shot; the bottom 1/4-20 threaded holes allow for mounting DJI RS 2/RSC 2 Quick Release Plate (Upper) with 2 screws for greater stability. Optional Cable Clamp 3000 is separately available for Sony A7 IV and A7S III to protect cable port and prevent signal disconnection. The cage features multiple rubber pads inside to prevent scratches and comes with a magnetic spanner for easy disassembly and assembly. The package contains four side lock adapters the black ones for Sony A7 IV and silver gray ones for Sony A7S III A7R IV and A1. Note: Please remove the cameras triangle split rings on both sides before install the cage. The HDMI Cable Clamp 3000 is not compatible with Sony A1 and A7R IV camera.