... A universal hotshoe socket on the receiver for Speedlite flash such as Canon, Nikon, Olympus, Pentax, Sigma and ... multiple receivers can be triggered by the main flash.The receivers can be mounted on the tripod ... screw.PC sync port for syncing with other compatible flash/strobe Supported Modes: Manual, Non TTL Auto Specification ... FT, AF-240 FT; Sigma EF-500 DG Super, EF-500 DG ST, EF-430;Sunpak Auto ...