1.18% Grey Card Reflector The 18% intermediate grey plane of this multi purpose card is precisely calibrated to provide a reliable reference for setting exposure and white balance across different lighting. By reflecting standard 18% incident light, it helps achieve accurate colours and tones with reduced guesswork. 2. White Balance Card Photographic Toning In addition to aiding exposure, the neutral grey panel lets you dial in the ideal white balance and maintain consistent image tones and accurate colour reproduction when working in multiple locations and light sources. It helps eliminate off colour problems. 3. Dual Colour Plate Function This double sided tool features an intelligent design with an industry standard 18% grey card on one side for adjusting exposure and white balance, and a matte white balance card on the other side for creating custom white balance presets to calibrate the camera in any light. 4. Focus Plate Grey Plate Provides Standard Reference Object The 18% grey side can also be used as a focus plate, providing a standard reference object for achieving depth of field and accurate focus with different lenses and subject distances. Typical applications and use cases Studio and on location shoots where quick, reliable exposure and white balance references are required before capturing images. Transitions between indoor tungsten lighting and daylight to maintain consistent colour and tonal accuracy across a workflow. Macro, portrait, or lens testing scenarios where a standard reference helps establish precise focus and depth of field at close distances.