preset aperture ring

例句：

1. 1.The camera's preset aperture ring allows you to quickly adjust the aperture without having to manually set it.
   相机的预置光圈环允许您快速调整光圈，而无需手动设置。
2. 2.During the photoshoot, the photographer used the preset aperture ring to control the exposure.
   在摄影拍摄期间，摄影师使用预置光圈环来控制曝光。
3. 3.The preset aperture ring on the lens can be adjusted to optimize performance in different lighting conditions.
   镜头上的预置光圈环可以调整，以在不同的照明条件下优化性能。