What is time-lapse shooting?

Time-lapse photography is also called time-lapse photography, and it is also called time-lapse video recording on the driving recorder Kyushu. This is a shooting technique 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. In time-lapse photography video, the slow change process of an object or scene is compressed into a very short time, showing a strange and wonderful scene that is usually imperceptible to the naked eye. Time-lapse photography can be regarded as the opposite of high-speed photography. Time-lapse photography is usually used to shoot urban scenery, natural scenery, astronomical phenomena, urban life, architectural manufacturing, biological evolution and other topics. At present, in addition to cameras, mobile phones and driving recorders Kyushu also have this function. Friends who have used digital cameras may have a feeling that it will take a short time to continue taking the next picture after pressing the shutter.

So what is the reason for this phenomenon? In fact, for today's digital cameras, there will be this phenomenon-shooting delay. The so-called "shooting delay" means that it takes some time to shoot the second picture after shooting the first picture. This does not exist in traditional cameras, but almost all digital cameras have this interval, and some models even have a delay between pressing the shutter and the real action of the camera. Due to the delay of digital camera shooting, not all digital cameras are suitable for fast continuous shooting at present. So what is the reason for the delay in this shooting? It turns out that after pressing the shutter, it takes a few seconds for the camera to internally process, generate an image, compress it, then save the image in the memory, the CCD clears the charge, and finally reset the camera internally. That is to say, the shooting of a digital camera has gone through the process of "optical signal → analog electric signal → digital electric signal → recording on a storage medium", which requires time for conversion and recording, especially recording. Because the storage buffer in digital cameras is relatively small, the continuous shooting speed of all digital cameras is not very fast at present.

After all the work is finished, you can take the next photo. But with the increase of camera memory and the improvement of compression technology, this delay will become shorter and shorter. Although many digital cameras provide continuous shooting function, some digital cameras support high-speed continuous shooting, and you can take several pictures of continuous shooting at a time. But you can easily notice that in ordinary digital cameras, most of them can only take low-resolution photos of continuous shooting, because the data of high-resolution photos is very large, and it will definitely take some time to process them. The shooting delay time of different types of digital cameras ranges from a fraction of a second to several seconds or even more than ten seconds. Of course, in order not to miss the shooting opportunity, the shorter the delay, the faster the response, the better. Moreover, the continuous shooting data provided by some manufacturers can't be achieved in actual operation. So when you actually buy it, you should use it yourself and feel the delay time-you must use the same resolution, which is the best way.