Tokina 70-200mm f/4... ???
On Photokina, this lens and the just-announced 12-28/4, were both under the glass. As the guys there said, it's expected to become available in mid 2013.
Robert Capa said 'you can never get close enough'. Well, he did.... He also often visited my daily photoblog at http://logatec.blogspot.com/