Camera techniqueQuestions and advice on how to improve your picture taking can be posted here. This board is discussion beyons the basics, which are catered for in the 'Help and advice for beginners' board.
no doubt there'll be a few looking for settings for fireworks....
my goto settings: manual focus, ISO100 (one hundred) f/14, bulb exposures of anything between 5 and 30+ seconds depending on what's going off and where.
small aperture and low ISO ensures the colours don't get washed out. may even want to push it to f/22 or beyond.