The problem of photography, the problem of shooting the bridge at night, seeks the master.

You can achieve this goal by extending the exposure time, and of course the aperture has to be reduced. If your camera shutter can use door B, it will be easy. The score says that you can open the shutter for a long time, then block the lens with a piece of black paper, take the lens away every 5 seconds, and block the lens every 5 seconds, which means that the influence of the bridge will fix the exposure, and people will be replaced by lights after many times because they are not fixed when walking. Do you understand?

If you know the imaging principle of the camera, it's easy to understand what I said.