Description:  his Camera Contrast Chart conforms to International Standard ISO-14524,Photography - Electronic Still Picture Cameras - Methods for Measuring Opto-Electronic Conversion Functions (OECF).

Notes:  Chart features 12 gray levels on a durable material. Densities range from 0.10 to 2.30. 

功能描述：

此测试卡是根据国际标准化组织标准ISO-14524制定，尺寸大小356mm x 200mm，

反射式测试卡，共有12个灰阶，密度从0.10到2.30，160:1的对比度亮度

请严格按照摄像机标准测试环境使用。