Have you ever wondered how photographers were able to capture a water splash, bursting balloon, or a bullet hitting a fruit? The goal of the high speed photography is capturing objects in motion. You can photograph events that follow a predictable sequence. In all cases you want to be able to detect a trigger, wait for an event and take a picture. For example, in order to capture a falling drop hitting the surface of water, first you need to detect the time when the drop starts falling. Next, you create a delay between the trigger and the event. Finally you take the picture.