Buy any AC-powered studio flash or flash kit worth $300 or more and get Porter's Wireless Studio Flash Trigger Set for only $39.99. Use with digital or film cameras, the transmitter mounts on camera's hot shoe, the receiver attaches to flash and is fired from distances up to 80 ft.

Finally, a simple and reasonably-priced radio frequency flash trigger that reliably fires off a remotely positioned flash. Use in your camera room to trigger your studio flash setup without PC cords. On location, the Radio Trigger has a range of up to 80 ft., so the flash can be positioned freely without concern about cord length or other people's cameras setting off your lights. Use with an advanced studio system or with a camera-mount flash like a Vivitar 283, the system works with all types. There are no on/off switches to set or forget in the wrong position. Since the units are in standby mode when not firing, the power use is minimal. The advanced circuit design encodes the wireless signal and protects it from interference from other devices. You can certainly spend a lot more and get more bells and whistles, but this is the set you need for basic, dependable flash firing.Transmitter mounts on camera's hot shoe mount plus a PC cord for bracket mounting is included. Very compact unit has low power consumption, so user-replaceable battery installed in transmitter is good for 20,000 flashes. Receiver has an attached 1/4" phono plug cord for attachment to many monolights and other studio flashes that use this type of connection. The receiver's PC terminal accepts all other types of flash cords. Includes Velcro and hanging loop for positioning transmitter near flash. Powered by (2) AA batteries, not included, for up to 30,000 flashes.