Yongnuo Upgrade RF-603 II C3 2.4GHz Wireless Flash Trigger/Wireless Shutter Release Transceiver Kit for Canon 1D/1DS, EOS 5D Mark II/5D/7D/50D/40D/30D/20D/10D Series

By Brand : Yongnuo

Avg Customer Reviews :

1, Higher sync speed than the first generation 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) 2, Adding the Locking rings 3, Improved Flash / Shutter control Buttons 4, Working for more non Canon/Nikon cameras and single firing pin cameras ALL Standard Hot shoe DSLR Camera except Sony and Minolta 5, 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