本标准的目的是规定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。本标准包括一种在数码相机内部使用控制信号的方法，以及一种在不需要进入数码相机内部的情况下确定定时值的方法。

The objective of this Standard is to specify 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. This Standard 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.