Kodak 4A Speed Camera, 1908-1913.
© National Media Museum / Science & Society Picture Library
This was a folding rollfilm camera with an advanced specification. Only about a thousand were produced in all. A focal plane shutter gave exposures as brief as 1/1000sec, allowing movement to be captured. In a bellows camera, focusing is achieved by either extending or collapsing the bellows to increase or decrease the distance between the lens and the film.