The concept behind light painting photography is based on moving a light source in front of the camera against a dark background. The camera’s shutter speed, aperture, and ISO should be set up to only expose the movement of the light source in the final shot.
The first step is to prepare the scene for light painting photography. The scene should be dark enough to contrast the light source. Then, you need to prepare a light source that will be used to create the light painting itself; it can be a flash light, torch, or a LED light.
In addition to the light source, you will need a tripod to ensure a steady shot and a remote trigger or electric cable release. Also, make sure to have an extra battery because light painting can drain your battery fast.
Regarding the camera settings, light painting photography requires you to open the shutter speed for as long as possible to in order to capture the maximum amount of light to draw with. You can either choose a slow shutter speed or use the bulb option that keeps the shutter open while you are pressing the trigger.
You should use a low ISO value to minimize the noise in the shot and capture only the light source in the scene. The aperture value can vary based on the depth of field that you would like to apply to the shot.
And now, here are some amazing light painting photography examples with different techniques and ideas.