It attaches to a camera with a 3/8″-16 or 1/4″-20 screw. The base plate features 15mm diameter and 60mm spaced rod holes that allows you to mount a follow focus, matte box, lens support or other accessories. It is specifically designed to keep the weight down and let the operator use the FS7’s inbuilt shoulder pad, minimizing the amount of extra weight and gear needed for a rig. With 1/4”-20 & 3/8”-16 threads on bottom, this base plate can be attached to any tripod.