“ Hi "Colonel" Kurtz ;)
although I have got both the Canon 16-35 mm f/2.8 and the Canon 17-40 mm f/4, my favorite wide angle lenses to "throw" in my backpack are the "non-professional" Canon 17-55 mm f72.8 IS and the Tokina 11 -16 mm f/2.8.
I'm a little on late with the second part of the EOS C300 test (Sorry! I have been out very often in the last few weeks ...) but it is now a matter of few days. ”