One of the most important industrial applications of high-speed cameras are combustion studies, which can contribute to a sustainable and environmentally friendly energy use.
Since automatic cameras have been developed, taking pictures in daily life has become very easy. Just to push a button produces more or less acceptable photographs. You do not need to think about exposure, diaphragm, or distance. Even a flash goes off automatically, when it is dark. If you, as a user of automatic cameras, have an opportunity to use a professional non-automatic camera, you may be frustrated: you have to select the correct diaphragm and exposure time, and adjust the focus precisely, in order to take pictures which are worth keeping. Even more complicated is the situation, if you, as a user of normal video cameras, suddenly get a high-speed camera. In the following I describe my own experiences, when I had an opportunity to use a high-speed camera for the first time: I was a normal user of automatic cameras and had no experience with high-speed cameras.