YONGNUO RF603 II C3 Flash Trigger 2 Transceivers Set Shutter Release for Canon 5D 5DII 5DIII 5DIII 6D 7D 50D 40D 30D 20D 10D 1Ds 1D

RF603 II, the manual Flash trigger and shutter release ( you can use those two functions simultaneity ), it adopts a global free FSK 2.4GHz wireless channel which can be suitable in many countries. RF-603 II with FSK system, can be more effective to speed, distance and stability. Within capacious areas, the remote control distance may reach to 100m.

• The highest flash sync speed up to 1/320 second (some of models may only reach to 1/250s or less, difference combination of models of flash and camera using may achieved difference flash sync speed).
• Improved Flash / Shutter control Buttons
• Working for more non Canon/Nikon cameras and single firing pin cameras --- ALL Standard Hot shoe DSLR Camera except Sony and Minolta.
• Adding the power switch for single transmitter --- Set the power switch on TX (single transmit) or TRX (transmit-receive automatic switch) state according to different shooting requirement. When it used as wireless triggering transmitter and flash testing, set to "TX"; When it used as wireless triggering receiver, using shutter release or other extended functions, set to "TRX". set to OFF means turn off the power
• A set consist of 2 equal transceivers. Both of them can be a receiver as well as transmitter. It can trigger 1 flash with one set, since one serves as trigger and one as receiver. You can also buy additional transceivers to trigger 2 or more flashes at the same time.
• It can fire the Studio Strobe light --- You need to purchase an extra 6.35mm cable to fulfill this function.

Compatible with: Canon 10D 20D 30D 40D 50D 1D 1D Mark II 1D Mark III 1D Mark IV 1Ds 1Ds Mark II 1Ds Mark III 5D 5D Mark II 5D Mark III 5D Mark IV 6D 7D