Woman suntanning on a hot July day in Oslo, Norway. The European heat wave of last summer drew people out to the beaches.

This photo is taken with infrared slide film (35 mm). Using infrared film is an unpredicable form of photography, as the light meter in the camera cannot see the infrared light. An orange filter number 16 is used. The resulting images are grainy with vivid colours and strong shadows.. The film was originally developed by Kodak during the Second World War for camouflage detection. It has later been used for aerial photography, astronomy, archaeology and forest surveys. The production of the film was discontinued in 2011, and today it is quite hard to find.