Some classic subjects of time-lapse photography include: Then, the photographs can be played back as a film at a speed that shows the subject appearing to move. Stop motion animation is a comparable technique a subject that does not actually move, such as a puppet, can repeatedly be moved manually by a small distance and photographed.
Time-lapse is the extreme version of the cinematography technique of undercranking. Processes that would normally appear subtle and slow to the human eye, such as the motion of the sun and stars in the sky or the growth of a plant, become very pronounced. Similarly, film can also be played at a much lower rate than at which it was captured, which slows down an otherwise fast action, as in slow motion or high-speed photography. For example, an image of a scene may be captured at 1 frame per second but then played back at 30 frames per second the result is an apparent 30 times speed increase. When played at normal speed, time appears to be moving faster and thus lapsing. Time-lapse photography is a technique in which the frequency at which film frames are captured (the frame rate) is much lower than the frequency used to view the sequence. Sunset time-lapse Mung bean seeds germinating, a 10-day time-lapse in roughly 1 minute The ALMA time-lapse of the night sky Blossoming geraniums 2 hours are compressed into a few seconds For other uses, see Time lapse (disambiguation).
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