Is there a comparison between the current UWA sharpness king, the Tokina 16-28 2.8 ATX-Pro and the new Canon 16-35 f4L IS yet ?
If not I hope some websites do a picture comparison test soon.
The expensive 16-35 f4L IS seems reasonable sharp in the corners from f8, but not 'wow'.
So they should compare it with the Tokina 16-28 2.8 ATX-Pro to see if the price difference as the Tokina is/was the sharpest of all UWA zooms.
I know there is IS, it accepts filters and is less heavy, but i'm speaking pure optical now.
In past we all thought the new 16-35 f2.8L II was the bomb, but later we saw it wasn't sharper than the 17-40 f4L and many of us returned to the 17-40 f4 for half the price equally sharp pics.
When we pay double price we don't expect only double light, but for UWA's we expect sharper corners too.
I'm curious, as the Tokina is known to be optically as good as Nikon's world changing 14-24