Originally
designed by Jacques-Yves Cousteau and Belgian engineer Jean de Wouters
and produced in France by La Spirotechnique in 1961. Nikon was
contacted by La Spirotechnique (now Aqua Lung) through an intermediary
Teikoku Sanso KK about producing and marketing the camera,
then
known as the Calypso. In 1963 the Nikonos was introduced and the age of
underwater photography was born. Able to dive to 165 feet and withstand
cold temperatures, the compact die-cast aluminum 35mm viewfinder camera
uses a unique O ring technology to achieve water tightness. The camera
features a vertical metal focal plane shutter, Albada bright line
finder, automatic film counter and accessory shoe. Standard lens is the
UW-35mm f2.5