Zoom burst is an effect of using slow camera shutter speed and manual zoom lens to create streaks of colour and light in an outwards direction in an otherwise usual photograph. Such photographs can be marked by blurred streaks arising from the center of the photograph. This is somewhat similar to motion blur, wherein an impression of motion towards the subject is created.
This is how zoom burst can be created on your own...
1) Locate the subject and mount the camera on a tripod. A few subjects to try : wall, flowers, statues, trees etc
2) Set camera shutter speed to a slow setting (1/4 to 1/2 should be good enough) Set the aperture accordingly to get optimum lighting.
3) Aim at the subject and press the shutter release button.
4) Zoom in on the subject manually, using the adjustment ring on the zoom lens, during the time the shutter remains open.
5) The result of doing this will cause anything outside of the photograph's center to burst outwards in trails of colour and light.
Here are a few examples :
Forest...
