Infra-Red and Ultra-Violet Imaging
The human visual system can detect the range of light spectrum from about 400 nanometers (violet) to about 700 nanometers (red). Our visual system perceives this range of light wave frequencies as a smoothly varying rainbow of colors. We call this range of light frequencies the visual spectrum. The following illustration shows the visual spectrum approximately as a typical human eye experiences it. Click here for an example image.
The Kodak image sensor used in the MK-3 camera is sensitive in ranges beyond the human visual spectrum. The range extends into both the ultra-violet and infra-red ranges. Using various optical band pass filters the MK-3 can be used for imaging in these extended ranges. The graph below shows the typical response of the MK-3's CCD.