Add accessories to your Sigma fp camera with the Top and Bottom Plate Kit from SmallRig, which provide you with a top and bottom plate with both 1/4"-20 and ARRI-style 3/8"-16 mounting threads. The top plate mounts on your Sigma fp using the included M3 screws, and the bottom plate mounts using the integrated 1/4"-20 screw.
The plates also interconnect with two front plates that secure around the lens of the camera and provide threads for mounting a separately available lens support adapter. The locating pins on the bottom plate prevent the camera from twisting once mounted. A flat head screwdriver stores in the base for tightening the camera screw.