Chip Chart

physical card or chart featuring a standardized series of black, gray, and white chips, used as a reference target during production and post-production. When filmed, the chip chart provides a known range of luma values that can be analyzed on a waveform monitor to match cameras in a multi-camera setup or to calibrate a color correction workflow. It is a fundamental tool for establishing a consistent and technically correct baseline for an image. It is also used as a reference tool during color correction to understand how a full range of luma and chroma values are represented on waveform monitors and vectorscopes. In multi-camera productions, pointing all cameras at a chip chart under the same lighting conditions is a standard procedure for matching their color and exposure profiles.