Traditional Culture Encyclopedia - Photography and portraiture - The flash flashes at a frequency of 20 Hz every few seconds.
The flash flashes at a frequency of 20 Hz every few seconds.
0.1.0s. Stroboscopic photography is a common experimental method to study the motion of objects. Photography was taken in a dark room. The camera is fixed on the ground and the shutter is always open. When the motion speed is set to 20 Hz, it is directly decided to blink every few seconds. 20 Hz corresponds to the program of 0. 1 sec.
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