Even in the digital realm, the Nikon Nikonos V Camera soldiers on as the most complete interchangeable-lens underwater-specific camera system in the world.  It just uses 35mm film.  With 5 lenses from fisheye to telephoto, your photos will only be limited by your opportunities and creativity.

The Nikonos V is extremely durable, with simple to operate controls that are oversized and highly visible.  It can function without batteries, and only needs simple lithium button cell batteries which last a long, long time.  The Nikonos V uses the Nikonos system of lenses and lighting/macro solutions, which includes the optional TTL Speedlight flashes.

An underwater-specific 35mm SLR camera

Extremely durable

Oversized, highly visible controls are simple to operate

The Nikonos V system of lenses, flash cords, brackets and macro accessories are available separately

Provides TTL flash exposure control when used with optional SB-104 & SB-105 Speedlights

Camera will work without batteries in special mechanical-shutter setting