Joined: Mar. 2008
For folks using auto-focus and auto-exposure, the transmission factor of the glass is irrelevant, unless one brand is crappy compared to another.
Movie makers need to work like Ansel Adams and control the luminosity of ever element in the frame. Or at least know how it's going to look.
That's why actors sit around for hours sometimes, waiting for the light to get right.
Any version of ID consistent with all the evidence is indistinguishable from evolution.