
Next guest post by Otto Peter is on how to modify the Yongnuo RF603N wireless remote flash trigger (available on eBay) to fit non-Nikon flash trigger sources, like light meters, or any camera with a PC socket
The Yongnuo RF603N is a nice, cheap wireless remote flash trigger for Nikon cameras. It does well what it is designed for, but its flash capabilities can only be used when it sits in the hot shoe of a recent Nikon camera. I want to be able to trigger my flashes from a light meter, from my F2, or maybe even from my Linhof (which, admittedly, I have not taken out of its case for a decade).
Each Yongnuo unit consists of two components: a shutter remote and a flash remote. Each component can operate either as a receiver or as a transmitter. The shutter remote is a receiver by default, it turns into a transmitter when you press the button. The flash remote is a transmitter when it’s installed on a Nikon hot shoe (flash transmitter mode LED is on) and it’s a receiver when it’s not in a hot shoe. As a flash receiver, it outputs its trigger signal to its own hot shoe and to its PC terminal.
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