How to calculate the time interval of time-lapse photography?

First, determine the real time of shooting. For example, if you want to shoot a two-hour real-time process and make the video have five minutes, you should first know that the frame rate of a general video is 1.24 frames/sec, which is 24 frames/sec, so you can calculate as follows:

The first video was shot for 5 minutes, or 300 seconds.

300 seconds times 24=7200 frames, which means 7200 photos are needed.

2 hours in real time, that is, 2×60×60=7200 seconds,

Take 7200 photos in 7200 seconds, that is:

7200 seconds ÷7200 sheets = 1 second,

The interval is one second.

Time-lapse photography, also known as time-lapsephography (English), is a kind of shooting technology that compresses time. It takes a group of photos or videos, and then through photo stitching or video frame extraction, it compresses the process of minutes, hours or even days and years into a short period of time and plays it out in the form of video.

Extended data:

Matters needing attention in shooting time-lapse photography

1, stability is very important, so the camera must be firmly fixed on a solid tripod to avoid camera shaking and shooting failure caused by wind and other reasons.

2. Avoid unnecessary sundries from entering the screen. If shooting on the road, in order to prevent pedestrians from entering the picture, the camera must be placed away from the sidewalk.

3. Prepare enough spare batteries and memory cards. Time-lapse shooting usually takes several hours or even dozens of hours, so it is necessary to prepare enough accessories according to the length of the required material. If conditions permit, it is best to turn on the alternating current to shoot.

4. Pay attention to the protection of the machine. Because it takes a long time, in order to protect the safety of the camera and avoid the damage caused by natural and human factors, we must pay attention to taking good care of the camera when shooting in time delay, and avoid exposure and low temperature.

References:

Baidu encyclopedia-time delay photography