High speed camera Guide, Meaning , Facts, Information and Description
A high speed camera is a device used for recording slow-motion playback films.A normal movie picture is filmed and played back at 24 fps (frames per second), while television uses 25 fps (PAL) to 29.97 fps (NTSC). High speed cameras can film up to 15,000 fps by running the film over a prism instead of using a shutter, thus reducing the need for moving parts. Using this technique one can stretch one second to more than 10 minutes of playback time (super slow motion). The fastest cameras are generally in use in the industry, for example crash tests to better document the crash and what happens to the automobile and passengers during a crash.
A problem for high speed cameras is the needed exposure for the film, so one needs very bright light to be able to film at 15,000 fps sometimes leading to the subject of examination being destroyed because of the heat of the lighting.
Even higher speed imaging is possible using specialized electronic charge-coupled device (CCD) imaging systems which can achieve speeds of up to 25 million frames per second.