The horse has bolted on the question "is that camera/mic on". If you see the camera, assume it's on. There's no going back. Often the camera/mic is dumb, obliv

The horse has bolted on the question "is that camera/mic on". If you see the camera, assume it's on. There's no going back. Often the camera/mic is dumb, oblivious to the status of downstream recording. Passive mics aren't even powered. I understand the concern about signalling recording status, but it's too late for people to adjust their expectations of recording status from the presence of a red light.