MacBeth X-Rite ColorChecker Classic.  True-to-life image color reproduction.  For more than 40 years, the ColorChecker Classic has delivered accurate and repeatable color results in photography and filmmaking. At 8.1 x 11.375 in. (20.57 x 28.9 cm), it is the ideal size for setting perfect exposures, matching multiple cameras, setting accurate white balance, and eliminating color shifts. It can be used in conjunction with the ColorChecker Camera calibration software to create the custom profile to save time in editing your photos.