The digital gray card and white balance tools are perfect for helping achieve white balance and color correction. In addition to providing a means for measuring exposure, a gray card provides a convenient reference for white balance, or color balance, allowing the camera to compensate for the illuminant color in a scene. In other words, the digital color card is a perfect addition to any studio because it allows you to create sharp images that really reflect the color of the scene. Features: - 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. - 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. Specifications: - Color: white + grey + black - Material: plastic - Card size: 85 * 55mm / 3.3 * 2.2in - Package size: 100 * 60 * 20mm / 3.9 * 2.4 * 0.8in - Package weight: 100g / 3.5 ounce Packing List: 1 * Color Calibrated Reference Cards