Please remember, the heart of most fireworks is magnesium.
This was the “flash” powder used by Edwardian pohotographers.
Set your camera on “Manual”
Stop that lens down to f16.
The burst blossoms, as a chrysanthemum.
Starting of dim, but developing to a blinding glare.
Then just as quickly fading to nothing.
Any kind of filter is inapropriate – your film will pick up colours that are beyond the human eye !
Use a pan/tilt tripod head.
ALL good firewoks photos are the result of rewinding the film, superimposing up to five bursts on each frame.
Happy Guy Fawkes Day.
John Smith. F.R.P.S.