When positioning a vessel in front of a lock and manoeuvring into the lock, a camera monitoring system is of great help. With the installation of a zoom camera on the bridge wings and a fixed camera on the mast, the captain has a good overview of the situation. The fixed camera on the mast is also used to eliminate the blind spot in front of the vessel. He can overlook the waterway to see if any smaller vessels like pleasure boats are in front of the vessels. This ensures safe operation of the vessel.