One feature I've been unable to find anywhere is the ability to sync the sensor clock very precisely, either manually as a menu option or using radio signals (B

One feature I've been unable to find anywhere is the ability to sync the sensor clock very precisely, either manually as a menu option or using radio signals (Bluetooth, Wifi, GPS or tv broadcast, I'm not sure which would be better). The idea would be to sync perfectly multiple cameras to capture an event in time exactly at the same moment, but from different angles. I know professionnal cameras can do this using a Genlock, but with the amount of sensors and radios on modern cameras, I'm pretty sure this could be made available to the masses.