How to shoot light painting photography and how to delay the exposure time? Can I shoot Canon E550d?

What is light painting? As the name implies, if you paint with light, there must be light. Generally, shooting in a completely dark environment, the background is dark, or there may be some dark light, as long as you don't touch the lens, otherwise you can't see anything and you can't operate.

1. If the machine is to be put on the shelf, the aperture can be smaller, such as 8.0- 1 1.

2. The shutter can be a slow door, at least 10 second, or a "B" door. The B-gate operation of 550D is to adjust the shutter within the range of m, and the B-gate will follow after 30 seconds.

3. Start shooting, open the shutter, and within the specified time, the characters hold fireworks sticks or LED lights in their hands and wave animation to create the desired trajectory. You can rehearse in advance when you turn on the light to ensure that you can see the range of activities of the characters clearly.