Hey Phil,
Thanks for posting that. That sure doesnt seem very fast. Especially the time it takes to go from dark to light. If I am going through a tunnel or a larger dark area, by the time it lightens up, I could be through it. I think that going from brigher areas to darker areas, is more important to have something change faster than going from darker areas to brighter areas. I can squint for a few seconds when entering bright areas, but there isnt much you can do when entering dark areas.
Soren