Globe and Mail photojournalist Tim McKenna gives some tips and tricks on changing exposure time to add movement to your photos
This soccer action photo was shot at 1/15th of a second. The face of the player in white is moving very little and appears relatively sharp. Everything else is moving and will blur across the focal plane at such a slow shutter speed.
This photo of nuts being heated was shot at a night market in Xi'an, China . Shot at 1/4 second shutter speed only the objects not moving appear sharp. The nuts are moving slowly in the bin and appear blurred.
This photo of traffic in Beiijng was shot at 1/15 of a second. The lens was panned - moving at the same speed as the child in yellow and the adult in red. Thus they appear sharp. All else will appear to blur.