I will (hopefully) be receiving my Canon 5D Mark III in enough time to record a school play.
I understand that the 5D Mark III will not auto-focus during video recording, so it's up to me to get the focus right. I don't want to rely on the small LCD screen on the camera, so I plan to bring a monitor with me.
Can I use an iPad for this? I see that the iPad has an AV adapter with HDMI:
But this appears to be for output only.
Is it possible to monitor the video being recorded on a 5D Mark II or Mark III on an iPad?