We are trying to sync 23 cameras and 4 strobe lights together. However, we keep getting a black band rolling across the images and can not figure out how to sync the strobes to fire when all of the shutters are fully open.
We have 23 Canon Rebel T5's all synced up to one wired trigger. It's a multi-trigger all plugging into the remote release.
The master camera has a SpeedLight 600EX-RT attached to it triggering 4 Einsteins strobe lights running via an optical slave. The flash is set to fire on the master camera at the second curtain.
The master camera is shooting at 1/30 and the other cameras are running at 1/15.
Any suggestions to try?