To be brief, motion photography is about showing movement. Adding a slight blur of the action to your shot helps tell a story. This storytelling element makes the images a little less static and unexpected. Another reason why showing movement stands out is because it sets the mood.

A shutter speed of 1/250 sec should be fast enough to freeze people walking around, whereas 1/500 sec is better if your subject is moving a bit quicker. For faster objects such as cars and birds in flight, shutter speeds of 1/2000 sec, 1/4000 sec or quicker are preferred.

Whatever it is, a bent head with a hunched back usually conveys sadness and despair. The eyes have a dejected look.

Again, the speed of the moving object will determine how slow the shutter speed needs to be. A shutter speed of 1/30 sec works well for bicycles, whereas shutter speeds between 1/60 sec and 1/125 sec work well for cars and motorcycles. If you want to blur a waterfall, a relatively long exposure of 3-5 seconds is best.