How to shoot a light with a SLR camera?

Shooting the night scene is a kind of difficulty, because we should consider the normal exposure of the foreground background and how to make the influence of the foreground characters clear. Indeed, this is one of the problems that most people encounter when visiting night scenes. Especially when using the camera to shoot automatically, turn on the flash when shooting, so that people close to the camera can get the correct exposure. However, due to the limited flash range and short exposure time of the camera, the night scene that was originally gorgeous to the naked eye appears dark in the camera. This is because the night scene in the distance takes a long exposure time to leave a normal exposure effect on the photo, while people nearby only need a short exposure time because of the flash. Therefore, it is best to use the manual gear of the camera when shooting, slow down the shutter and force the flash to shoot. After the flash is over, it is suggested that the characters keep their original posture until the end of exposure, so that the photos of the characters and the background night scene can be exposed normally. However, portrait shooting at night is not a patent for manual cameras. Nowadays, all digital cameras have night portrait shooting mode, which is also set by using the principle of slow shutter and forced flash. When shooting, you need to use a tripod to fix the camera, because it is necessary to keep the camera still when exposing the background for a long time, and then a tripod becomes a necessity. 2. Night photography Night photography is also night photography. The more beautiful the night, the more suitable the city at night. The city that never sleeps has rich colors and bright lights, so the shooting of night scenes has become a subject of photography. Although it is difficult for the camera to shoot the night scene, we can check the exposure in time through the LCD screen and get more satisfactory colors by adjusting the color temperature, which provides great convenience for the digital camera to shoot the night scene. At present, many high-end digital cameras provide shooting modes of P (automatic), A (aperture priority), S (shutter priority) and M (manual). In addition, most digital cameras provide scene shooting modes, the most common modes are night scene mode and macro mode, and some digital cameras provide more detailed and rich scene modes, and even can obtain functions such as shooting modes in the evening and late at night. This night scene mode can generally achieve satisfactory results. For most novice digital cameras, shooting night scenes is the simplest, feasible and guaranteed method. You don't need a tripod to shoot at night. When the camera is mounted on a tripod, it can slowly shoot the light drawn by the car lights or the scene of the crowd flowing. Of course, in order to achieve the best artistic effect, the afterglow of twilight can effectively separate the outline of the building and show a better sense of hierarchy. Photographers who pursue artistic effects will adopt the method of secondary exposure in the same position, that is, exposure at dusk, and exposure after turning on various lights and decorative lights after dark. It should be noted that the camera cannot move during two exposures, and each exposure should be half of the exposure. For example, the first exposure takes1/60s, the shooting takes1/30s, the second exposure takes1/4s, and the shooting scene takes1/8s. In addition, the use of white balance is also very important. Choosing different white balance will directly affect the tone and artistic conception of the photo. Generally speaking, don't choose automatic white balance, which will affect the inherent color of light and make it lose its unique color temperature feeling. Generally speaking, we will use tungsten lamp white balance when shooting city night scenes, because this white balance is closer to the effect of lighting. Of course, this is not absolute, it depends on the environment.