50mm

Well that was an expensive fuckup. Trade the 1d mk3 for a 5d mk2 only to trade back again less than 1 month and less than 300 photos later.
Lesson learned. The only reason I did not switch to Nikon is it would have cost me significantly to buy the same setup I have now. And given I make no money taking photographs it seems slightly unjustified.
Moral of this story is buy Nikon from the start. Canon had the edge until the D3 then everything changed.