Sorry for jumping in, but this is related to lens..
couple of questions:
1) is it possible to use a snowboarding goggle (like this) for drifting (cars) and snowboarding, or will they break from the shit that flies at you in drifting?
2) this is because at night it is near impossible to wear sunnies (clear/low light lens is needed) and i want to interchange them to ones which i can wear boarding...
3) if q1/2 go well, what is the best IO/S lens for night driving? (clear yea?)