Types of Film

Generally there are two types of film: negative and positive. Negative films record a negative image of the scene or subject that is photographed. Therefore light areas of the scene appear dark on the film and the colours themselves are seen as the opposite colour on the colour wheel. In order to produce a positive image it has to be transferred to photographic paper via contact or enlargement.

Similarly, positive film records a positive image of the scene. The colours and the areas of varying light are recorded as the scene appears itself. The resulting images are called slides or transparencies and in order to view the image it is necessary to project them on to a screen.