Microfadeometry is a recently developed technique that measures color changes and evaluates light stability in individual objects of art that are sensitive to light exposure. A microfade tester (MFT) uses a powerful xenon arc lamp and filters to focus a beam of very intense light through a fiber optic onto a tiny spot on the surface of the artwork. A second fiber optic collects the reflected light and delivers it to a miniature spectrometer. As the lamp fades the surface of the artwork, the resulting color change is monitored by the spectrometer.
