I have a SMDV RFN3- Rx and it has the N style plug that goes in the side of the 5D MKII but it will not trigger the shutter. I set the camera to bulb mode and turn the device on. There's a blue light on the receiver and a light on the transmitter and it's interrupted when I press the remote shutter button. It won't trigger the shutter.
I've looked on You tube man can find them being sold but no directions. Any help would be greatly appreciated.



