Shutter speed and painting with light

Shutter speed is the exposure time. It stands for the length of time a camera shutter is open and exposes light into the sensor of the camera. If you use a slow shutter speed you get motion blur which gives the effect of movement to your image if done correctly often seen in motor or sport photography. If you use a fast shutter speed it freezes the action you are trying to capture.

When doing the drawing with light workshop I used a slow shutter speed, here are some examples of drawing with light:

Artist inspiration:
Pablo Picasso