speed photography
For still photography, high-speed photography means those photographs made with an exposure time of 1 millisecond 1/1000 of a second or less. An event captured at 250fps and played back at a normal 25fps will appear to be slowed down by a factor of ten. Often, bare electric sparks were used to create a bright enough pulse of light, only a fraction of a millisecond long, to freeze rapid motion. The modern shutter on a digital single-lens reflex camera is capable of exposures of 1/4000 second 0.25 millisecond but the small electronic flash units made for these cameras can routinely give exposures as short as 1/40,000 second (0.025 millisecond). This is ten times shorter than the camera shutter. Some important things to consider with of high speed photography would be Method, Moment and Duration which is important to consider when capturing these types of photos.