Night photography is subject to the same set of constraints as daylight photography - namely aperture, shutter speed and light sensitivity - although these are all often pushed to their extremes.
夜间摄影与白天摄影受到同样条件的约束——即光圈，快门速度，感光度——不过它对于这些参数的控制都要达到极致。
Photo Tip: The long exposures required for firework photography mean slow shutter speeds.
照片说明：拍摄焰火照片需要长时间的曝光，这意味着要降低快门速度。
This function delays the firing of the shutter (after the button has been pushed) for up to 10 seconds, fixing one of the age old problems in photography: the missing photographer.
这个功能让你按下快门后过一段时间再拍照(最多10秒)，它解决了另一个困扰人们多年的问题——没有摄影者的全家福。
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