Hot-shoe Adapter and Remote Flash Controller

If a flash unit does not have a PC Sync port, then you will need a Flash Adapter to trigger the flash unit from Pluto Trigger. This Adapter has also a built-in flash sensor to synch trigger on a flash from a master flash-unit.
It works with all flash units using universal hot shoe like Canon, Nikon, Sigma, Olympus, Pentax (Minolta, Sony, Konica have partly proprietary hot shoe contacts and are therefore not directly supported. You need a hot shoe adapter of the respective device brand to ISO standard flash contact).