The ColorQuest® OL is an on-line spectrophotometer that continuously measures transmitted color of film and sheet that have no haze. The source and receiver heads are mounted on a support structure, and the sample passes between them. The system has a built-in touch screen display. Data can be output to a LIMS or network or in analog form. If the sample has any haze, the ColorQuest OL Haze system should be used.