In OMA's case Iwan Baan is the one who goes where no one (holding a camera) has gone before, or will go after him for that matter (too late, the curtain wall has gone up). If you've seen the photos he took for OMA in Beijing (on his website), you know he's got what it takes to create lasting impressions even before the project is finished.Note to Self and Every Other: When in London go see show.