The one color camera is a critical design concept that aims at resharpening the photographer’s look and making him more aware of the three basic colors that are the basic elements of his photographs. The camera exists in three versions: blue, green and red. Depending on the color, each camera allows the photographer to take a photograph only when the image contains enough of the respective color. When for example the green camera is pointed at something, a sensor measures the amount of green in the image. If it is below 50 %, the shutter button is blocked, and no picture can be taken. Only when the amount of green is above 50 %, the shutter button can be pressed.