DGK Digital Kolor Pro 16:9 Chart - Set of 2 Large Color Calibration and Video Chip Charts / 18% Gray White Balance Cards Set of 2 Digital Kolor Pro 14 by 7.88 inch (365 by 200 mm) 16:9 HD video format heavyweight paper charts The front of the chart has 18 reference color targets plus 11-step crossed grey scales. The back of the chart has 6 primary vector color patches and framing apertures for 16:9 (HD) , 3:2, 4:3 (SD) and 1:1 formats. For optimum white balance and color. True blacks for gamma, tonal reproduction and richer-looking video Designed in Boston and Made in USA by DGK Color Tools