We have a binocular horizontal field of view something like 120 degrees, and where Mark sits (2X image height) is only approx 60 degrees, so he's still only using around half of his field of view. I doubt he has to move his head, only his eyes if he needs to scan across the screen from one side to the other.
Originally Posted by elmalloc
Who says Cameron is "right" and why do we care about him so much - lol!
I trust Gary Lightfoot more than James Cameron.