Designed for use exclusively with Sony cameras, the Cactus V6 IIs Wireless Flash Transceiver is capable of controlling Canon, Fujifilm, Nikon, Olympus, Panasonic and Pentax system flashes all at the same time. It can support high-speed synchronisation (HSS) at shutter speeds of up to 1/8000s, and also features a Power Sync mode that boosts flash contribution