Fireworks photography is a relatively easy theme in photography and the two most important gadgets needed are a tripod and any camera that has an adjustable shutter speed no less than a few seconds. The principle of fireworks photography is to catch the moving trail of fireworks from launch until it's finished exploding which usually takes a few seconds. As a long time exposure is used in fireworks photography, secure your camera to something that will ensure it doesn’t move during the photo shooting. If you have a better camera, there are a few settings to perfect the fireworks photography.
Set your camera and lens to manual; focus on something in a distance (infinite usually works just fine); a low ISO (100/200) to get the cleanest shot possible; turn off Noise Reduction to maximize the number of photos you can capture (noise reduction can slow you down by half); photo format in RAW (an ideal format for post editing if needed, expecially for correcting white balance and noise reduction)
Set your aperture to f8-f16 with ISO 100, which gives you a pretty good depth-of-field. As the emission of fireworks is very bright, a mid to small range of F stop usually works well in such settings. The difference between mid (f8) and small (F16) aperture is that a smaller aperture gives thiner trails of light whereas bigger aperture fattens trails out.
Set the shutter speed to buld. A remote release in hand in buld mode gives you total control of shutter speeds, resulting in various fireworks patterns. (Details later)
Unlike my black card photography part I, the application of a black card in fireworks photography isn't to get a balanced exposure in a great dynamic range of luminance between the lightest and darkest areas of the image but to black out smoke as well as to prevent an over-exposed image due to too many 'bursts' in one frame with complex exposures.
Left: over-exposed due to too many bursts at the bottom of the frame; right: the complete trails of fireworks in different altitudes were captured by using a black card.
Black card photography in fireworks, first, use spot metering mode to measure the exposure time of the foreground and follow the steps as follows:
Don't be afraid to try, you never know what you might get as a result. Good luck and let me know.