X-Rite Color Checker Exposure Aid, 8-1/2x11"
One of the most photographed images in the world, a checkerboard 4x6 array of 24 2" scientifically prepared colored squares in a wide range of colors used for calibrating and evaluating color reproduction systems.
Many of these squares represent natural colors such as human skin, foliage, and blue sky. The industry standard for color comparison.
The ColorChecker is 8.5"x11.5" proportioned to fill a 35mm frame. Packaged in a protective sleeve with instructions describing suggested applications and technical information.