On EX cameras, when both internal & external power is connected, which drains first?
 

I'm using an external battery on a shoulder rig with an EX1R. If there's also a SONY BP battery in the camera's battery slot, anyone know which will drain first, the internal or external source?

Re: On EX cameras, when both internal & external power is connected, which drains fir
 

External. When there is power connected to the DC IN, it will drain that over the BP-U battery. Do be warned that there is no low voltage switchover when you do this so you must manually yank the DC IN to switch to the BP-U battery.