What should I pay attention to when shooting night scenes:

What should I pay attention to when shooting night scenes?

A good night scene must first ensure the clarity of the picture, and a blurred photo can't be called a good photo in any case. Because the light at night is much weaker than during the day, in order to ensure that there is enough light to achieve correct exposure through CCD. At this time, if you use the gear (automatic gear), the camera will slow down the shutter speed. Often less than110 seconds. In this case, hand-held shooting is almost impossible to guarantee stability. Therefore, it is necessary to clap the night tripod. By installing the corner frame, you can arrange the exposure time at will to create a picture full of personality.

The tripod should be as high as possible, as strong as possible and as heavy as possible, because such a tripod can ensure that it will not shake when shooting. Weifeng 1.4 meter domestic plastic leg frame for ordinary fans will do. Of course, don't expect such a tripod to accompany you over the mountains.

If you don't have a tripod, you can also increase the shutter speed by increasing the ISO sensitivity if necessary. However, in general, the ISO value should not be adjusted too high. Too high sensitivity will add a lot of noise to the picture and make it rough. For example, when ISO is 200, the screen is basically fine, and when ISO is 400, it is basically acceptable after resizing. Don't use ISO400 or above unless absolutely necessary, because full-screen noise is more difficult to adjust in PS later than underexposure. There is a saying in the digital camera called "Better owe than pass", which means better owe than pass. Because if we use shutter priority, we can control the shutter speed freely. When shooting the night scene, it can be controlled at a stable speed (Bian Xiao's personal speed is 1/20S), but at this time, it is inevitable that the sense of violence is insufficient. But the lack of violence is easier to adjust in PS. And if overexposed, the highlights are all dead white, that is, no one can save them. Remember, remember!

Second, it is necessary to accurately expose. Aside from the special effects created to express special artistic conception, the correct exposure can be obtained by using aperture priority mode and average metering. If this does not achieve the desired effect, we can also control the shutter speed through shutter priority mode or full manual (M-range). Under normal circumstances, with proper aperture and shutter speed of 2-4 seconds, special effects similar to "traffic flow" and "waterline" can be obtained.

At the same time, it should be noted that too long exposure time will also increase the noise of the picture, especially on machines without noise reduction function. This is very strange for Bian Xiao. Bian Xiao's PRO90IS has 8 seconds exposure, but it has 16 seconds on O Ji 2 100 without noise reduction function! Bian Xiao saw an 8-second exposure film, so where is the night scene? There are stars everywhere.

Under normal circumstances, you don't need a flash to shoot at night. Because the effective distance of the flash is limited, it can't illuminate the panorama to be shot. But if you shoot a portrait at night, you need to turn on the flash and choose the slow synchronization mode to ensure that both the character and the background get enough exposure. In addition, in order to make the scene more clear, we usually use the minimum aperture to shoot. For some cameras, this can also achieve the Starlight Glimmer effect of light. Note: The intensity and shape of the star awn are different due to different cameras. Some cameras can hardly shoot beautiful stars.

These are just some basic skills of shooting night scenes. For the camera with full manual function, different effects can be obtained through different exposure time.

Precautions for night photography:

1, to prevent the camera from moving.

When shooting at night, the camera should be screwed on a tripod or placed in a stable and firm place. Adjust the aperture, press the shutter and observe the scenery. Don't touch the fuselage, especially when exposed many times. Otherwise, the negative film will appear ghosting, which will lead to shooting failure.

2, the use of aperture

Pay special attention to the use of aperture when shooting night scenes. Because it affects the clarity of the scene. Some night scenes, because the light is very dark, can not accurately determine the shooting distance. Therefore, the methods of reducing aperture and increasing depth of field are often used to deal with it. When shooting night scenes, the commonly used aperture is f5.6 or f8. The positions of some scenes are relatively fixed, and the light changes little. The aperture can be appropriately smaller, but the exposure time should be extended accordingly, so that the clear range of the scene can be larger. When multiple exposures are made, the exposure can be adjusted through the aperture according to the intensity of light on the spot.

3. Determination of distance

The shooting distance should be measured as accurately as possible, otherwise it will directly affect the clarity of the scene. Generally speaking, when shooting a big scene at night, the distance can be placed at infinity. If you take a shot or close-up, you should focus on it. The clearer the focus, the better. The focus should be fixed on the position of the subject or the main part of the scene, and then measured after being illuminated by a flashlight. You can also use bright spots near the subject instead of measurement. Once the distance is determined, it cannot be changed at will during shooting.

4. Mastery of exposure

Night shooting exposure is complicated, so you can't rely on the exposure meter. We should explore the law from reality. There are two exposure methods: one exposure and multiple exposures.

(1) One exposure: One exposure is easier to master. Before shooting, before shooting, put the camera on a tripod, and then determine the shooting object and framing range. After framing, check the fixation of the camera again, and control the opening of the shutter with the release of the cable to make a timed exposure. Without cable release, the lens cover can be used to control the open shutter.

(2) Multiple exposures: More than two exposures are called multiple exposures. It is a method used only when one exposure cannot complete the shooting task. Using multiple exposures, some scenes can be shot in stages, making the picture rich in content and lively in form.

When using multiple exposures, we should pay attention to: first, separate the scenes with different light intensities, so that the darkest scene is exposed more first, and the brightest scene is exposed less later. Second, some scenes can't be exposed first or more, and artificial light can be used to properly enhance the brightness of dark scenes to adjust the contrast of the picture. Thirdly, for some scenes with too strong or too weak light, the film can be thinned or thickened, and enlarged can also be remedied if it cannot be adjusted on site.

It is difficult to have a definite number for night shooting exposure. Exposure time of more than one second depends on the photographer's experience. Generally speaking, exposure should be controlled more strictly when exposure is carried out. When multiple exposures are made, the exposure time has a lot of room for expansion. If you find that some scenes or parts of scenes are not exposed enough, you can open the shutter again to make up for it. No matter one exposure or multiple exposures, there is still the afterglow of sunset in the sky when shooting, so the exposure time should be tightened, and underexposure is better than overexposure. If overexposed, the photos will lose their night features. As night falls, colorful lights decorate our city, and both buildings and people show completely different colors from those during the day. Even the ordinary scenery during the day will give people a fantastic feeling under the bright lights at night, but it is difficult to shoot these beautiful night scenes with digital cameras, which is largely determined by the characteristics of digital cameras themselves. Therefore, we need to pay more attention to some skills to make up for the defects of the camera.

Third, the preparation of equipment

Any digital camera can shoot night scenes, but it is best to have manual setting functions such as manual focusing, exposure compensation adjustment and manual shutter aperture setting, so that you can shoot according to your own wishes. It would be more perfect if the camera had a hood. At night, because there are all kinds of lights around, using a hood can avoid the interference of other lights. A stable tripod is essential. Night shooting requires long exposure most of the time, and hand-held shooting is basically impossible. If possible, it is best to prepare the cable release, so as to minimize the vibration of the camera. If not, the camera's self-timer function can also be used to select the exposure combination. From a technical point of view, the appropriate exposure combination is the basis for the success of photos, which is particularly important for night shooting. Generally speaking, we can choose A file (aperture priority) or M file (manual mode) to shoot at night. Set the f value to the maximum, and then adjust the shutter value. As for how long exposure time to choose, it is a matter of different opinions. Some people think that the same scenery is brighter and the exposure time can be set longer; If you think it's better to be dark, then the time is shorter. The best way is to use a variety of exposure combinations to shoot and choose later. At the same time, play back in time when shooting, so as to adjust your exposure combination.

How to focus?

Many digital cameras will have the phenomenon that autofocus can't work when shooting night scenes. At this time, you can switch to manual focusing and see the focusing effect with lcd. Roughly estimate the distance between the scene and the camera, and then select the appropriate focal length through the numerical display of lcd. If you want to show a big scene or a distant scene, you can directly adjust the focal length to infinity (the focal length on the camera is infinity), which can have a good effect.

white balance adjustment

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. In order to highlight colorful lanterns, you can set the white balance to "daylight" or "outdoor" mode. Of course, this is not absolute. You can try shooting with a different white balance and make adjustments later.

Other matters needing attention.

There are some precautions for night shooting. It is not easy to choose too high iso (sensitivity), which will produce noise. The general iso is 100. It is best not to use flash, which will destroy the atmosphere of the scene, and the general random flash will not play much role in night scene shooting; Stability is crucial. Press the shutter gently to avoid unnecessary vibration, and also pay attention to whether there is a vibration source at the scene.