bracket exposures meaning in Chinese
包围式曝光，作多级增减曝光
作多级增减曝光
Examples
- As the right combination of exposure time and aperture varies for different celestial objects shooted and equipment used , bracket exposure two stops either way is recommended in order to find out the best exposure time
使用不同的仪器拍摄不同的天体，均要求不同的曝光时间与光圈。拍摄时多试上下两级的曝光即1 4 1 2 2及4倍，可以更准确找出正确的曝光时间。