We have so many fireworks displays around here that our town (a suburb of Kansas City) had ours early (June 22!). This was the first time I've tried to shoot a fireworks display and it was fun and easy. Shot with a Canon 6D, 24-70L 2.8, ISO 100, f4.0, and shutter around 2 seconds (my wired remote failed during setup, so I couldn't use bulb mode but had to resort to longish shutter times). I've shot lightning several times in the last year, so my remote had quite a bit of workout, but not as much as I would have expected before failure. I ordered another and am ready to go for tonight's fireworks!
Nice photos, Doug. Every year I plan on going to a fairly big fireworks display at Fort Jackson here in Columbia, SC and taking photos. I have kept tips on how to shoot fireworks, some of them from members here at CR. I also keep meaning to join the procrastinators club but never seem to get around to it. The show might be rained out anyway this year. I can hear thunder & rain as I write this. Good luck on your next shoot