In this image, the slight blur adds a feeling of panic, confusion and fear. You get a definite sense that this woman is in danger.
(c) Imageshop. Image #42-15356780
(c) Zefa RF. Image #42-18138591
Showing speed is one of the easiest and most effective ways to use blur. While in reality, this horse was probably doing no better than 30 MPH, but the blur effect gives the illusion that he is blazing across the track at a million miles an hour. You can’t help but think speed.
(c) Tetra. Image #TI0300695
Another thing blur can be used for is to add an element of mystery. Without blur, this image is very straightforward. It’s just a businessman with a briefcase walking down a hotel hallway. But the blur effect adds much more. It gives you the feeling that this man is off to something potentially shady or is involved in some mysterious plot. You start to wonder what is in his briefcase. A whole mystery novel begins to unfold in your head.
(c) Corbis RF. Image #CB100517
(c) Corbis RF. Image #CB100517