bmynbr wrote in post #6908807
Just wondering if with one cybersync reciever, you can fire two flashes.
I was thinking of two ways.
1-get a splitter for the sync cable
2-not sure if you can, but a 580 in master mode and manual, and the other in slave and manual.
Not sure if you can put a 580 in master or slave while in manual.
Sorry I didn't look it up, but I don't have a manual with me.
Thanks guys, Dave
1 is doable although, if you're going to be using a splitter and a long sync cable to connect the flashes to the receiver, you could just as well connect the flashes directly to the camera, too.
2 is also doable as long as the master, as you said, is in manual master mode. The slave can be either in manual mode, in which case, its power level is set on the slave, or it can be in ETTL mode, in which case, its power level will need to be set via the master using the ratio feature on the master. Since the two flashes are going to be talking to each other using IR, this setup will not be very effective outdoors in bright sunlight.
One other caveat with this setup is that the usable max sync speed will need to be dropped by one Ev, e.g. from 1/250 to 1/125.