time lapse

Time-lapse photography is a technique whereby the frequency at which film frames are captured (the frame rate) is much more spread out than the frequency used to view the sequence. When played at normal speed, time appears to be moving faster and thus lapsing. 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. In a similar manner, film can also be played at a much lower rate than at which it was captured, slowing down an otherwise fast action, as in slow motion or high-speed photography.
Processes that would normally appear subtle and slow to the human eye, e.g. the motion of the sun and stars in the sky or the growth of a plant, become very pronounced. Time-lapse is the extreme version of the cinematography technique of undercranking. 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. Then the photographs can be played back as a film at a speed that shows the subject appearing to move.

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  1. zvis

    Time lapse of construction project with security camera or webcam

    Hi I am constructing a house. I want to place a camera in a neighbor's window which will preferably plug in to the mains and will take time time lapse pictures (preferably uploaded by wifi to the cloud) every 15m (preferably only daytime on weekdays) for two years. It's just for fun, don't want...
  2. mallllias

    Atmospheric pollution from factories day and night, video time lapse

    hallo to everyone and good rest of summer! Here are some pictures of what's going on in the atmosphere of Kavala city in Greece. from the factories mainly the fertilizers but also the oils that work non-stop day and night. You can't stand around there. With a motorbike you pass and you throttle...
  3. noiseboy72

    Astrophotography in the back garden!

    With the clear nights and little else to do, I thought I would try a little astrophotography. This is a nice simple timelapse over a couple of hours. The lighting is from our house and the bright light a neighbours security light that hits our garden when our cat nips over to have a dump in his...
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