Vinient Grey Card White Balance Card 18% Exposure Photography Card ustom Calibration Camera Checker r Video, DSLR and Film

Neutral 18% Grey / Gray Card For Better Photos.Gray card can balance all mixed lights to be 18% neutral gray. A 18% grey card not only have the use of measuring the camera exposure value, also be able to adjust color balance and revert the color truly and perfectly by controlling the gray balance in digital photography.

from Consumer Electronics Store http://cestore.net/accessories-supplies/camera-photo-accessories/light-meters-accessories/grey-cards/Vinient-Balance-Exposure-Photography-Calibration.html?pid=B01DPV5PUA