Similar to flash agreements, in very strategic area.
与快闪协议相似，也是用在非常有战略性的领域。
2
The speedlight will pre-flash that area and lock that exposure into memory. I might caution you that you have 16 seconds to then recompose and take the shot.
闪光灯会预闪并把曝光值记忆下来，注意你只有16秒的时间重新构图拍摄。
3
Without this tenacity, this aggression, he would be another intermittent flash of light in a wide area.