quess wat!?! make a horrible mistake taking shots of fireworks using fast shuuter speed...caught lots of "nice" shots but jus couldn't...well wasn't satified at all with them. Wat mode do ur usually use during fireworks occasions...jah i dun want to spoil another time! (dun say fireworks mode)
Turn your mode dial to M, aperture put to f/8 (no choice as that's the max) and shutter speed put to 2 secs.
There's no cable release for the S5 IS so no choice, have to manually trigger off which will cause camera shakes.
And most imptly, use a tripod.