Photography - Digital still cameras - Determination of exposure index, ISO speed ratings, standard output sensitivity, and recommended exposure index
摄影技术.数码相机.曝光指数 ISO速度等级 标准输出灵敏度和推荐曝光指数的测定
The objective of this Standard is to specify the method for assigning and reporting ISO speed ratings, ISO speed latitude ratings, standard output sensitivity values, and recommended exposure index values, for digital still cameras. It is applicable to both monochrome and colour digital still cameras.