This Rotatable Horizontal-to-Vertical Mount Plate Kit for Sony Mirrorless Cameras from Smallrig is a faster and more versatile alternative to using a conventional L-bracket to mount select Sony mirrorless cameras to a tripod head. This lightweight rotating mechanism allows camera orientation to be changed with the flick of a wrist, then locked in place with a large, ergonomic knob. The plate mounts to the base of the camera, leaving the sides and back uncover for full access to the ports and LCD screen. The base plate also allows full access to the camera's battery door. The lens release button makes it easy to change lenses without having to remove the camera from the mount or the tripod. The versatile mounting foot is compatible with both Arca-type and Manfrotto RC2 quick release systems.