ISO 9335:2012给出了成像系统光学传递函数（OTF）测量设备构造和使用的一般指南。 它规定了可能影响OTF测量的重要因素，并给出了设备性能要求和环境控制的一般规则。它规定了应采取的重要预防措施，以确保对收集的数据应用准确的测量和校正系数。

ISO 9335:2012 gives general guidance for the construction and use of equipment for measurement of the optical transfer function (OTF) of imaging systems. It specifies important factors that can influence the measurement of the OTF, and gives general rules for equipment performance requirements and environmental controls. It specifies important precautions that should be taken to ensure accurate measurements and correction factors to be applied to the collected data.