I'd love to see some independent results from someone who doesn't have skin in the game. Whilst damage might be more obvious in a camera CCD, even small amounts

I'd love to see some independent results from someone who doesn't have skin in the game. Whilst damage might be more obvious in a camera CCD, even small amounts of cumulative damage over time could be doing serious harm without it being immediately obvious. I've seen f/1.6 lenses, where as the eyes are apparently f/8.3 - f/2.2, so yes the eyes take in less light, but it's substantially harder than an EF-S mount to swapout. edit: also, what about animals with good night vision? they are more sensitive and take in more light - are they at danger?