Apparatus and equipment for photographic (including cinematographic) laboratories, not specified or included elsewhere in this Chapter; negatoscopes; projection screens.
本章其他税目未列名的照相(包括电影)洗印用装置及设备；负片显示器；银幕及其他投影屏幕。
2
Although, Photographic optical lens can be used as objective projected. But Projection objective has some different.