本文件规定了如何测量和报告数码相机（包括手机和平板电脑中的相机模块）的拍摄时滞、快门释放时滞、拍摄速率和启动时滞。它包括一种在数码相机内部使用控制信号的方法，以及一种在不需要访问数码相机内部的情况下确定定时值的方法。 本文件不涉及自动对焦速度低于推荐照明水平或自动对焦精度的测量。

This document specifies how to measure and report the shooting time lag, shutter release time lag, shooting rate and start-up time lag for digital still cameras, including camera modules in phones and tablet computers. It includes a method that uses control signals inside the digital still camera and a method that determines the timing values without requiring access to the inside of the digital still camera. This document does not address the measurement either of auto focus speed below recommended illumination level or auto focus accuracy.