That one was crying out for minimum DOF so I just cranked it up to F1.4 and had to fudge the ISO to one of the Low settings (I think plus 1) so as not to exceed the maximum shutter speed.
Get yourself a neutral density filter for your prime. An ND3 reduces the light by three stops. Your camera will still focus fine and you'll be able to use 1.4 in bright sunshine without exceeding 1/8000 or whatever the D3 goes to.
Cesare