Good, looking forward to this review. Not that I'd be willing to switch away from my 16-35/4L at this point - for most anything - but it'd be nice to see how the alternatives fare (yes I know the "low resolution"

test of ver.1 has been out for a while but it'd be nice to compare the bar heights to those on 50MP.

)
It looks like you enjoyed using the lens at 15mm for the most part.
Ugh... This gallery makes me wonder what I'm doing here, in gray/forever-winter-cloudy central Europe...

Winter? Wassat? ;-)
On the downside ... we've got bushfires lately ...