GH2 + Nissin Di466 FT
If you use the Nissin Di466FT in manual mode with a radio trigger, it will go into standby after 2 minutes without usage. After that time you have to push a button on the flash to wake it up. Pressing the shutter on the camera or on the remote transmitter will not work for waking up. This is quite an annoyance if the flash is set up further away from the camera and you don´t shoot for 2 minutes.
If you use the flash with an extension cord, pressing the shutter on the camera will wake it up.
In optical slave mode the flash will go into standby after 60 minutes, however the flash can´t be fired by a remote receiver.