Calypso lens mount_Pentax Auto 110 The Sony E 50mm f1

The Sony E 50mm f1

3 Novar Anastigmat lens in a three-speed Vario shutter

lightweight head suitable for DSLRs or mirrorless cameras

A nice example of this lens

with a Flozier for additional softening

Calypso lens mount_Pentax Auto 110 The Sony E 50mm f1The Calypso is an underwater camera originally designed for Jacques Cousteau and his expeditions. It's the first true self contained underwater camera, which is to say that it's not just a terrestrial camera in a bulky housing. When new, it was capable of submersion up to an impressive 200ft (but please do not try it with this camera today). The Calypso is very small and handles easily, even with gloves. Nikon liked it so much that they bought the