Nikon Nikonos IV 35mm camera with a 35mm f2.5 Nikkor. lens. The Nikonos was designed as an underwater camera, so it’s heavily armoured in a thick metal shell with o-ring gaskets. It has a manually-selectable 1/90s shutter speed, plus aperture priority autoexposure. Note that we can not certify this camera for underwater use, but it is a great camera for use in any harsh environment. Includes an extra set of O-rings.