Is the camera fps a shooting parameter or a playback parameter?

Fps refers to the number of frames transmitted per second, generally referring to the number of frames of animation or video. The fps of movies is 24 frames per second, that of TV is 25 frames per second (this standard is adopted in China) and that of NTSC is 30 frames per second. This parameter is used for shooting and playing. And for some devices and computer games, this parameter can also be understood as refresh rate. For example, the refresh rate is 75Hz, which means that the screen only scans 75 times a second, that is, 75 frames per second. At present, the minimum refresh rate of LCD is generally 60Hz. If the refresh rate is low, the image will flicker and be incoherent. In the game, the picture is like a slide show. Many computer games rely on the performance of graphics cards to display pictures. The performance of the graphics card is low, and the fps will not be high. The higher the performance of the graphics card, the higher the fps. At present, the graphics card with better performance can display more than 100 fps, and the refresh rate will be higher than 60Hz.

At present, the refresh rate of digital cameras used in film and television drama shooting is basically 50Hz to 120Hz. For cameras that need a higher or lower refresh rate for shooting special scenes, such as slow motion or fast motion, some cameras have a wide refresh rate range and can be adjusted as needed.

In early China, the TV refresh rate was 50Hz, which was related to the civil power supply in China. The voltage in China is 220V and 50Hz, so the fps of TV movies is 25 frames per second. The voltage used in some countries such as Japan is 1 10V, 60Hz. Therefore, even if the voltage of TV set imported from Japan is changed to 220V, its frequency generally supports 50 to 60Hz, which is one reason why some imported TV sets support various standards (compatible with Pal, NTSC and other standards).