“光圈”怎么读

用小光圈，仔细调整相机位置。Use a small aperture and position the camera carefully.用闪光照相，要把光圈孔径定为5.6。For flash photography, set the aperture at f.5.6.聚光灯的光圈随着她在舞台上转.The spotlight followed her round the stage....

“光圈”的英语可以翻译为：iris diaphragm，iris aperture，light ring，stop，aperture ...