LANC

LANC (Logic Application Control Bus System or Local Application Control Bus System), also known as Control-L is a hardware and software communication protocol invented by Sony that synchronizes camcorders and cameras.

The LANC terminal on Sony and other manufacturers' camcorders lets accessories—such as tripods with a control handle—control the camera over a cable connected to the LANC port instead of using buttons on the camera. It is also available on many still cameras, where it is called ACC (the Sony DSC-xxxx series of cameras).