Chronophotography

The Chrono Photography ( also Fotochronografie ) refers to the photographic documentation of movements or processes, today primarily as high-speed photography.

History

In the development of photography were in the 1870s and 1880s by the so-called sensitive photographic materials and quick camera shutters " moment or Momentphotografien " possible shots of moving objects. The pioneers of chronophotography ( Ottomar Anschütz, Albert Londe, Étienne -Jules Marey, Eadweard Muybridge ) developed various techniques to make it through a quick series of shots ( series Photography ) movements visible. Series Photography and chronophotography were originally used synonymously.

Muybridge succeeded in 1878 to prove that a galloping horse takes off for a short time with all four hooves off the ground. These early series recordings provided important impetus for the development of "moving images " and were also precursors of the movie.

High-speed photography

Today the chronophotography referred mainly a branch of photography which deals with the inclusion of fast movements, such as movements of animals and humans, a bullet at the moment of impact, a balloon at the moment of bursting. The aim is to movements in several phases " freeze" to make them visible to the slow human eye.

Depending on the application it is crucial to strike the right moment, the photograph and very short to expose, typically 1 /1000 second to 1/30.000 second ( high-speed photography ). Using a stroboscopic flash several phases of movement can be based on this principle in a receiver represent ( multiple exposure).

With pulse lasers as stroboscopic light source even for exposure times of 25 ns ( 1/40.000.000 s ) are possible.

Other pioneers of high-speed photography

188778
de