Just a fully thought-out product and until now after a month and nothing negative happens. Immediately after the delivery to the RF-603C II, I use easily on the Sony A99, connected. DH set the switch so that both are equal. Surprised me that a switch on the flash menu can not be changed, which I then switched on the transmitter and everything works! Otherwise: Super quality, flash performance, short charging, easy to read display, reasonably understandable menu navigation! I'm using in a couple with a YN-560 Mark II of the same reflector into blitzt.Beide to 1/2 power is in slave mode and very quickly prepared and in a Soohting to 600 photos is not yet empty.
