Against the advice of pretty much everyone, I went out and bought the Cannon EF 180 mm f/3.5L Macro USM with the singular purpose of getting more pixels per duck.
This is the result. Full frame (that's 5616 pixels across on the 1DsMkIII) and 100% crop.
Andrew
This is the result. Full frame (that's 5616 pixels across on the 1DsMkIII) and 100% crop.


Andrew