The LMK and LMK color are imaging luminance and color measuring devices. Digital camera systems that are used for absolute measurement of luminance and color. Various results are obtained from the measured images, such as luminance, luminous intensity, illuminance, color values, contrasts, and other photometric perception criteria, such as glare and detectability.

The LMK systems are available in three different resolutions (5, 12, and 30 megapixels) and can be equipped with a very large selection of lenses for different applications. They are individually adjusted and calibrated in combination with the delivered lenses according to applicable standards.