Just like the big brother 24-70 II, the new 16-35 f4 IS MTF charts look awesome.
My 16-35 II & 50L are on ebay.
I'll hold off until I see some actual reviews of the 16-35 F4 but I suspect I'll be joining you in putting my 16-35 II on ebay as well... (Especially since I take alot of video with that lens too)
Why trade in the 16-35 f/2.8 for the f/4.0? Wouldn't you guys prefer the faster aperture?
Sharpness, sharpness, sharpness. Every landscaper who isn't shooting MF Zeiss glass is drooling over the MTF charts for this lens. This one, on paper, is a massive upgrade.