Upload & Sell: Off
...When I tilt my laptop back the entire image darkens a bit.
I've known that any viewing angle other than square-on could cause brightness issues, but I never realized until now just how serious -- and non-linear -- the effect was.
If I tilt the top of my LCD monitor way back most of this page will look normal, but blocks A through E on my chart above will blend into one large black block.
I can't remember where I saw them (Art Wolfe's studio, maybe?), but I've seen monitors that had devices clipped to the edges that work like gun sights to show when one's eyes are centered on and squared to the screen. I might have to look into that for myself.