[Zig]

That's a really good point: no need to worry about Zone C when the FoV covers A and B(it's with some trepidation that I stand on the edge of full-frame and consider how the 16-35 will fare). I have to say though Matt, that this looks a remarkably interesting lens and can only guess at the augmented spring in your step. Looks like real joy..and isn't it wonderful to get a lens that is real beaut! Am continuing to follow this and am even as we speak having a closer look at a few reports.