The Calibrite ColorChecker Gray Balance Mini is a portable A6-sized grey balance target It’s an 18% grey balance card ideal for setting correct exposure in photography and filmmaking For photography, the grey card adjusts your digital camera’s colour sensitivity to exactly match the ambient lighting conditions For filmmaking, the grey card verifies grey balance through the configuration of cameras, lights and film The calibration card is scientifically engineered to provide a precise uniform surface that is spectrally neutral