Photography Tips » flash PC sync cord

PC is still the extremely common flash cable cord connector on essentially all speedlights today. You may think it connects to a computer. Actually, the name PC (Prontor-Compur) is from 2 now defunct German shutter companies in the 1950s. A Prontor-Compur connection (PC connector, PC terminal, or PC socket) is a standard 3.5 mm (1/8") electrical connector used in photography to synchronize the shutter to...