Calypso brand_Leica notably at the hood mounting

notably at the hood mounting flange

which is panchromatically sensitized

A traditional fine-grained black & white film with distinctive tones and extended IR sensitivity

The Canon 5D Mark IV is a full-frame 30mp digital SLR camera with ISO settings from 100 to 32000

An infrared film with sensitivity up to 820nm

Calypso brand_Leica notably at the hood mountingIf this Calypso looks familiar, its because Nikon later bought this design and called it the Nikonos. But this is an original Calypso, designed for Jacques Cousteau, made in France, with a SOM Berthiot 35mm f3. 5 lens. Also: imitation seal skin covering, for that proper explorer vibe. Working shutter and lens, unfortunately missing nameplate.