TE218用于检查相机的自动对焦系统。
它由两个不同尺寸的西门子星组成。
The TE218 is designed to check the autofocus system of a camera.
It consists of two different sizes of Siemens stars.
它由两个不同尺寸的西门子星组成。
The TE218 is designed to check the autofocus system of a camera.
It consists of two different sizes of Siemens stars.