Long Exposure Photography

Long exposure photography is when a scene includes both stationary and moving objects.  The slow shutter speed can cause effects like light trails.  This technique is best accomplished in low-light conditions.  It is often used at night with the trailing lights of cars or stars as the move across the sky.

It can also be used with water so that it has mist like qualities as the objects in the background like land, rocks, and structures look sharper.  One of the most popular techniques is used with waterfalls.