Long exposure photography is one of the coolest ways of taking pictures. It requires a longer shutter speed, anywhere from 1/2 sec up to several minutes or even a hour. Having a longer shutter speed of a few seconds allows the camera to take in more light to the sensor (or film for the film buffs). ... - Nik

Wow! These are brilliant! - Son of Groucho

More here: http://www.smashingtips.com/long-ex... - Nik