Quote Originally Posted by Jonathan Huyer View Post
Otherwise you would probably go completely black during totality, due to the very wide difference in lighting.
I had video going on my G7x mounted on a gorillapod. I started it a few minutes before totality: 1/250, f/5 and ISO 400. In M mode (nothing auto). That was 1 stop above proper exposure with ~95% of the sun covered.

Scene went pitch black during totality except for a sliver along the horizon.