The technique of image-dissection is one of many methods developed for photographically recording high speed phenomena. Patented by Kanolt in 1912, the principle involves dividing an image into a large number of small elements. These lines or dots are deposited on the recording medium with spaces between them which are large as compared to the element size. All that is then necessary is to displace subsequent images a distance equal to the size of one element before depositing their respective elements on the emulsion. High recording rates are achieved since the displacement of each image is quite small.