Curious about how to create these magical versions of fireworks?
The trick is to quickly adjust the focus during the 1 to 5 second exposure.
You’ll definitely need a tripod and a camera that can be set to manual.
For the images above, I had my ISO at lowest, least grainy setting of 100.
Keep your aperture small enough that the extended time spent with the shutter open doesn’t cause
fireworks to be too bright. I had my aperture set to about f10.
I found that shorter shutter speeds allowed me to maintain a quick and smooth focus transition.