The self-contained amphibious underwater Calypso 35mm film camera was conceived by the marine explorer Jacques Cousteau (1910–1997), designed by Jean de Wouters and manufactured by Atoms in France. It was distributed by La Spirotechnique in Paris from 1960. The camera is rated to operate down to 60 m (200 ft) below sea level. The Calypso was sometimes advertised as the "CALYPSO-PHOT". Nikon took over production and sold it from 1963 as the Nikonos, which subsequently became a well-known series of underwater cameras.[1]