In this photo, Tony Locke and our son, Chris, are setting up for a long exposure of the Stanley Hotel in Estes Park, Colorado. While, I (the mom) watch on and take photos of them (while they're not looking).
"10-stop ND's not enough, let's add another 3-stop ND on top."
"We've done 3 minutes, then 6 minutes. Histogram looks good, with lots of room 'to the right'. Now it's time to do an 8 minute shot."
"No, wait. I can't see the screen in this sunshine."