Portable Grey Card White Balance Card 18% Exposure Photography Card Custom Calibration Camera Checker Video for Digital DSLR

Good luck with your favorite purchases  Features:Includes three color calibrated reference cards.It helps you get correct white balance, or color balance, allowing the camera to compensate for the illuminant color in a scene.For optimum color correction: the black card achieves truly deep blacks (RGB 16,16,15); the grey card displays superior spectral neutrality with measured values of 162, 162, 160; the white card has a tested RGB value of (220, 224, 223).The neck strap with quick-release plastic buckle on the end, convenient for your use.  Specifications:Item size: 85 * 54mm / 3.4 * 2.2inColor: Black/White/GreyPackage weight: 34g / 1.21oz Package List:3 * Balance Cards1 * Neck Strap