Hello all. I've been wondering how best to do a time-lapse sequence of my high school stadium filling up with people, and i'm looking for some advice. I'm sure this technique can also be used in terms of Anime.
OK, so my main question is this: what's the difference between timelapse photography and simlpy speeding up a loooong video segment? I mean, I know timelapse is PHOTOGRAPHY, where a still camera is set up to take a picture once every few minutes or something, and that speeding up video requires a lot of tapes, batteries, etc. to do.
So can I get the same results with timelapse as I do with setting up a video camera? I mean, when you speed up video footage, Premiere or whatever program you're using just drops frames to get the speed up, and time-lapse photography seems to "drop" frames because it selectively picks a frame every second or two. Let's look at it mathematically:
Let's make this easy. Let's say I want to make an hour's worth of footage condensed into 2 seconds. Let's also say, just for simplicity, that NTSC video runs at 30 FPS rather than 29.97
Time Lapse: To do this, I must set the camera to take a picture once every minute: 60 minutes in an hour means 60 pictures at 30 FPS means 2 seconds of footage. 60 pictures * 30 FPS is 1800...this means that if this were video I'd be taking one picture out of every 1800 possible pictures.
Videotape: I take 30 framesx60 secondsx60 minutes = 108000 frames of footage with the video tape. However, if I want to get 2 seconds of footage, I need to bring that down to 60 frames of footage. If I divide 108000 by 60 I get 1800 frames, meaning I take one frame out of every 1800 frames..... just the same as the time lapse photography!!!
SO would these look any different? Does anyone know?
Thanks a lot, guys!!
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