What is the difference between time-lapse photography and video acceleration?

The difference between time-lapse photography and video acceleration is as follows:

1. The first is the different shooting techniques.

Video shooting must be video; Time-lapse photography can be a video or a photo. In layman's terms, fast video playback means shooting at normal speed and then playing it quickly; Time-lapse photography is slow shooting and then playing at normal speed. Time-lapse photography can be taken in the form of photos. Video playback can only be shooting video.

2. The second is the difference in shooting time.

Limited by the pressure of equipment and storage, it is impossible for video shooting to last for days or even weeks, and then quickly compressed and played. But time-lapse photography is different. It can be taken in the form of photos, such as flowering, which usually lasts for several weeks, so it can be taken as time-lapse photography.

In the latest BBC documentary Blue Planet 2, there are some time-lapse shots that need to be shot continuously for a short time. But for a few minutes or tens of minutes of fixed-point shooting time, there is little difference between fast video playback and time-lapse photography.

3. Finally, there is the difference in liquidity.

Generally speaking, the shooting position of video fast playback is fixed, that is, the fixed equipment shoots the video, and then the post-processing of fast playback can be carried out. But time-lapse photography can be more complicated, and it can change the position, such as moving back and forth, moving left and right, moving up and down, hovering or even moving all around.

If it is video shooting technology, you can set a slide rail, and then control the change of moving speed and shooting angle through the machine; If it is photography technology, you can use tripod (good effect) or hand-held (unstable), then dynamically adjust the moving speed and shooting angle, and then post-process and stack.

Of course, it is limited to the current situation that the track is very expensive. Most folk time-lapse photography is almost a photography technique.