Highspeed

High speed photography is an engineering tool, much as is an oscilloscope or a computer. It is a photographic technique that enables us to visualize and analyze motion. Especially motions that are too fast for the human eye or conventional cameras to perceive.

 

Or high-speed photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high-speed photography as any set of photographs captured by a camera capable of 69 frames per second or greater, and of at least three consecutive frames. Highspeed photography can be considered to be the opposite of time-lapse photography.
In common usage, high speed photography may refer to either or both of the following meanings. The first is that the photograph itself may be taken in a way as to appear to freeze the motion, especially to reduce motion blur. The second is that a series of photographs may be taken at a high sampling frequency or frame rate. The first requires a sensor with good sensitivity and either a very good shuttering system or a very fast strobe light. The second requires some means of capturing successive frames, either with a mechanical device or by moving data off electronic sensors very quickly.
Other considerations for high-speed photographers are record length, reciprocity breakdown, and spatial resolution.

 

source: 

https://www.phantomhighspeed.com/news/whoweare/aboutvri

https://en.wikipedia.org/wiki/High-speed_photography