Form 5C Opacity Chart The Leneta Form 5C Opacity Chart is an essential tool for precise color and opacity measurements. Featuring distinct black and white areas, this chart is designed for both visual and instrumental assessment of opacity and color. The dimensions of the Form 5C chart are 7-5/8 x 10-1/4 inches (194 x 260 mm), making it a versatile choice for various applications. Leneta is renowned worldwide for manufacturing high-quality contrast and test cards. The white and black colors on the charts are stable over time, ensuring consistent results for colorimetric control. Additionally, the charts are free of ultraviolet (UV) components, which is crucial for maintaining accurate color assessments over time. The Form 5C Opacity Chart can be ordered with or without a glossy finish. The glossy option prevents sample penetration, while the non-glossy option allows for absorption, making it suitable for different types of paints and inks.