pinhole lens

例句：

1. 1.The pinhole lens is used to capture small objects in a photograph.
   针孔透镜用于在照片中捕捉小物体。
2. 2. The pinhole lens is an essential tool for astrophotography.
   针孔透镜是天文学摄影的必备工具。
3. 3. The pinhole lens is used to create a very shallow depth of field.
   针孔透镜用于创造非常浅的景深。