SmallRig L-Bracket for Sony Alpha a7S III 3003 attaches to the camera using a 1/4"-20 screw, with anti-twist design and rubber pad preventing wiggles or scratches. Both the side plate and base plate are Arca compatible, allowing a quick switch between horizontal and vertical orientation shooting. The L-Bracket does not block buttons, ports, LCD screen, or battery switches of the camera. The whole L-Bracket can extend to left by 20mm if you need more room for tethering or cable release. It also comes with 1/4"-20 accessory threads allowing mount of accessories. A flat-head screwdriver is kept on the base plate for easy access.