Top left corner
The 14-24 shows good contrast and detail wide open, and crisps up very nicely at f/4, improving a bit more to f/5.6, then holds.
The 16-35 is soft at f/4, perks up at f/5.6, but doesn’t crisp up the corner until f/11.
Aperture f/16 brings a grayish dullness, a loss of brilliance, as expected from diffraction.
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