The DSC Labs SRW3-CBGS ColorBar/GrayScale Standard CamAlign Chip Chart is a chart designed for calibrating the color on your video camera. Many video professionals consider calibration charts a necessity for optimizing camera performance and the production value of images. This chart has been designed with that philosophy in mind and works equally well in engineering or production work. This model includes (6) vector primary colors, 11-step crossed grayscales and 100 IRE white and true-black chips.