New Year's Eve Fireworks on Sydney Harbour

I took this bobbing around on a boat with the 20d at ISO 1600 at

1/40th, using my 50mm f1.4 at f1.6. I didn't want to shoot wide open

because the colours wash out each click up to about f2.8, but

considering how many unsteady shots I got I should have gone f1.4 and

ISO 3200 and maybe bought some noise reduction software.