How many frames of video shot by a general SLR camera are enough?

General SLR digital cameras support 30 frames of video recording. Ordinary movies are broadcast at 24 frames per second, while domestic videos are broadcast at 25 frames per second. If you need to shoot the trajectory of a high-speed moving object, the higher the number of frames, the better.

The number of frames is mainly used for camera shooting. The higher the number of frames, the more coherent and clear the dynamic picture is. Of course, the more frames per second, the larger the recorded file and the higher the image definition. Please prepare a large memory card, or according to the shooting length. Adjust the content appropriately!

Extended data

If there are fluorescent lamps, mercury lamps, televisions or computer monitors in the shooting scene, flicker may appear in the video, which is caused by current fluctuation. In fact, this problem is well solved:

1, first check whether the camera has flicker repair function (for example, Nikon D5 100 has "reduce flicker" option in the setting menu). You can choose different frequencies under this option to achieve the best results.

2. The flicker problem can also be solved by adjusting the shutter speed. For example, if the current frequency in the United States is 60Hz, we should use the shutter speed of 1/60s to shoot (or divide 1/60s by an integer, such as1120s,1180s, etc. ).