延时摄影/TIME-LAPSE PHOTOGRAPHY

延时摄影

在延时摄影中,捕获相同场景或主题的一系列帧以描绘变化或波动的状态。最终结果是一组镜头,可以像短视频一样播放,显示物体或主体受到时间流逝的影响。

流行的主题包括太阳,星星,月亮和天空中其他天体的运动,植物的生长,一块食物的腐烂,像新建筑这样的大项目的演变,或者在城市中移动的人和交通。

延时摄影使用公式来实现其独特的移动质量。主题的感知速度等于投影的帧速率除以摄像机的帧速率,再乘以正在发生的场景的实际速度(数学!根据此计算,录制的镜头在移动速度上会有所不同。延时摄影除了修改相机的速度外,还使用短曝光时间和长曝光时间来控制帧中存在的运动模糊量。将这种技术与高动态范围(HDR)成像和日夜过渡等其他技术相结合,可以产生令人惊叹的图像。


TIME-LAPSE PHOTOGRAPHY

In time-lapse photography, a series of frames of the same scene or subject matter are captured to depict a state of change or fluctuation. The final result is a collection of shots that can be played back like a short video that shows the object or subject being affected by the passage of time.

Popular subject matter includes things like the motion of the sun, stars, moon, and other celestial bodies in the sky, the growth of a plant, the decay of a piece of food, the evolution of a big project like a new building, or people and traffic moving around in a city.

Time-lapses use a formula to achieve their distinct moving quality. Perceived speed of the subject matter equals the projection’s frame rate, divided by the camera’s frame rate, multiplied by the actual speed of the scene taking place (math!). Recorded shots will vary in how quickly they appear to move, based on this calculation. Time-lapse photography also uses short and long exposure times, in addition to modifying the speed of the camera, to control the amount of motion blur present in the frames. Combining this technique with others such as high-dynamic-range (HDR) imaging and day-to-night transitions can produce stunning imagery.

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