Purple City Wide Shot
The dynamic range of modern digital cameras is quite impressive but it was still easier to mix city and fireworks when there was a long delay that left the sky dark.
Finale Blowout
This was shot as part of a time lapse. Normally you know to keep the exposures short at the end of the fireworks but the time lapse always shoots the same exposure length.
Fireworks Time Lapse From Burrard Bridge
This was tricky. I had the camera in shutter speed priority until the fireworks started and then switched to manual mode to get a reasonable exposure.
This is 1071 frames shot 6 second apart for 107 minutes or 1 hour and 47 minutes. It is played back at 15 fps so it isn't all flashes and the boats don't look crazy fast. I wanted to take more photos after so you could see the rush of boats come back but a little girl needed to go pee.