Can someone link me to a good adapter cable to use my Canon Metz flash with my copal shutters? The copal shutter flash sync connector is just called a PC flash connector, right?
Assuming the shutters are not ancient, yes they will be PC connectors. Make sure the "X-M" switch (if present) is in X.
I would suggest obtaining some cheap radio triggers off eBay. They tend to have PC sockets at each end so you can plug the transmitter into your shutter. And 99% of them are Canon-compatible; you just won't get TTL metering