A photograph is a visible image originating from the action of light or other forms of radiant energy upon a photographic medium or device.
Print (P) - A photograph that is presented on an opaque surface.
Slide (S) - A photograph that is presented on a transparent surface.
Electronic Digital Photographic Image (D) - A photograph that is presented by electronic digital means.
Audio Visual (AV) - Involving or directed simultaneously at the faculties of seeing and hearing.
Monochrome (M) - Any photograph containing shades of only one colour. If toning is carried out, it must be over the total photograph - partial toning and/or the addition of one extra colour is not acceptable in a monochrome section.
Colour (C) - Any photograph that is not monochrome. It includes a monochrome photograph that has been partially toned or had colour added.
If an exhibition does not include the category of "Monochrome" in any media, monochrome photographs shall be eligible to be entered in the colour category in that media.