To ensure that all cameras are framing at the same speed and frames are aligned, the cameras need to be synchronised. This is achieved by taking the 'sync out' from the master camera (The master camera is the main camera that will control all the other camera speeds), and connecting into the 'sync in' of the remaining cameras (Slave cameras). When the frame rate is set on the master camera the other slave cameras will lock to that same speed, and will all be framing at the same time.
