EOS 7D Mark II: Auto Power Off when mirroring

When using the HDMI output to record movies to an external device, you should check your Auto Power Off settings for the camera. By default, the camera will Auto Power Off after the time elapses. Even if you set the Auto Power Off to disable but you are using the Mirroring setting, the HDMI output will stop if you don’t touch the camera for 30mins. To prevent this, simply make sure you touch a button on the camera to keep it alive – a half press of the shutter button, for example.
EOS Movies
EOS 7D Mark II