SmallRig SR4148 (SR-4148) Rotatable Horizontal-to-Vertical Mount Plate Kit for Sony Alpha 7R V / Alpha 7 IV / Alpha 7S III / Alpha 7R IV SmallRigRotatableHorizontal-to-Vertical Mount PlateKitfor Sony Alpha 7R V / Alpha 7 IV / Alpha 7S III / Alpha 7R IV4148is designed to quickly switch between horizontal and vertical modes without adjusting the lens optical axis. It locks the bottom of the camera via a 1/4-20 screw and anti-twist pin and maintains full access to the LCD flip screen and ports and features built-in pads that prevent scratches and twisting. Compatible with Arca-type / Manfrotto RC2 tripod the mounting plate can rotate by 90 degrees by unlocking a knob to switch between horizontal and vertical shooting. Its bottom 1/4-20 and 3/8-16 threaded holes also supportHandle 2093C etc. to enhance stability in handheld mode. The baseplate can be used separately to meet your various needs with a hinge arm at the battery door fitting the camera body perfectly for a better grip experience. It also comes with a strap slot a 1/4-20 threaded hole for the wrist strap a quick release plate etc.; and a magnetic double-head wrench for easy installation and release.