Anwenk Grey Card White Balance Card 18% Exposure with Premium Landyard 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...

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...

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...