When Kodak gray cards are not available, we have improved gray cards made by a specialist manufacturer. It does without an optical brightener and offers an even more accurate gray (18%), on the other side, a pure white area for white balance. The carrier material is a coated cardboard with a thickness of 2 mm. This set contains two pieces of 20x25 cm dimension and one "pocket" gray card 10x12.5 cm dimension.
