In the late 19th century amateur and commercial photographers created images intended to astonish, amuse, and entertain. The photographs were altered using a variety of techniques, including multiple exposure (taking two or more pictures on a single negative), combination printing (producing a single print from elements of two or more negatives), photomontage, overpainting, and retouching on the negative or print. The meaning and content of the camera image was significantly transformed in the process of manipulation. amateur and commercial photographers created images intended to astonish, amuse, and entertain.