When shooting during the day, we can get what you see, but at night, we must consider a series of problems such as the influence of lighting, the combination of the realism of the scene and the stability of the camera, so the shooting skills of night scenes are particularly important.
The unique charm of night scene is that it can combine static and virtual, and the dynamic virtual shadow effect echoes with traffic, pedestrians and static buildings. Ordinary digital cameras are difficult to shoot in good daylight, so it is very important to shoot the real static scene clearly, and the necessary tools for shooting are also very important. Sufficient batteries, a stable tripod and a digital camera with manual exposure function are the basic conditions for shooting night scenes. If the camera does not have manual mode, it should at least have the functions of "aperture priority", "exposure compensation" and long exposure. (The exposure time should be longer than 1 sec. If you don't have a tripod, you can also find something nearby to support the camera stably, such as railings on the roadside and bicycle seats. Because the speed of shooting night scenes is generally slow, hand-held shooting is easy to blur the picture because of hand jitter. In addition, the choice of shooting location is also very important. For example, shooting on a pedestrian bridge will cause the bridge deck to shake and the picture will be blurred. In order to prevent shaking when the shutter is pressed, it is best to use 2-second self-timer or remote control and cable release operation, and also consider the influence of wind. It's best not to shoot night scenes when the wind is strong. Finally, it is best to install a range hood.
Two: noise problem:
High ISO long exposure is easy to produce noise and affect the picture, so try to shoot with low ISO on the premise of camera stability. Most cameras will have noise reduction function when exposed for a long time. The noise is most obvious in the middle and dark areas, but not obvious in the highlights and darkest places. Therefore, it is necessary to underexpose when shooting to keep the night sky dark, so that the sky will look cleaner. If the noise is serious, noise reduction software can be used in post-processing, but although noise reduction can make the picture clean, it will also blur the image and lose some details.
Three: About night metering
At night, the contrast between light and dark is large and the light is complex, which will bring a lot of trouble to photometry. Average photometry is usually used. In addition, the exposure of 1-2 should be reduced when shooting, in order to prevent the light from overexposure and the messy light from affecting the picture. Of course, if you want to shoot that brightly lit effect, you can not reduce or even increase the exposure compensation. For different creative intentions, shooting parameters have great freedom and different aperture shutters. Because the LCD display effect of most digital cameras is brighter than that on the computer screen, if the camera can adjust the LCD brightness, it is best to adjust the LCD to be similar to the computer monitor before shooting, so that the most accurate judgment can be made during shooting and playback, and the exposure compensation can be reduced, the shutter can be shortened, and the high-light part can be exposed normally, which will make the picture cleaner. Under the condition of not reducing exposure compensation, bright lights and silky traffic effects can be achieved, but at this time, the details of bright parts will be greatly lost, which will also cause.
Four: About the starlight effect
Many people like the star-studded effect in night shooting. Most cameras have a star-studded effect when shooting night scenes with a small aperture. The shape of the star awn has a great relationship with the shape of the aperture, so some cameras still don't have the effect of the star awn with a small aperture, but they can take good night photos without the star awn. If the starlight effect is too strong, it will interfere with the picture. Ordinary fool cameras can't shoot stars because they can't adjust the aperture, but they can still shoot beautiful night scenes as long as the time is right. If you want to shoot a star-studded effect, you'd better use an aperture of more than 8. The smaller the aperture and the longer the exposure time, the more obvious the star effect will be.
Five: Capture dynamic virtual shadows
Many people like to avoid pedestrians when shooting scenery. In fact, it is not necessary to shoot at night, because like traffic, most pedestrians who shoot with slow shutters will become transparent virtual shadows at night. If the characters are in the proper position of the picture, it will add a lot of color to the picture. Later, the color of the photo will be properly processed, which will increase a lot of humanistic feelings.
Six: About the composition of night shooting.
The composition of the night scene should be determined according to the needs of the picture and the scene at that time. If there is a beautiful sunset in the sky, you can take more pictures of the sky. If it is all black and the whole sky is black, then the position relationship between the luminous points and their lines should be considered when composing the composition. It is best to avoid the direct illumination of strong light sources nearby, otherwise glare and halo will bring great trouble to the picture. Because it is dark, the horizon is not easy to determine. In order to avoid the inclination of the ground plane, try to use the viewfinder grid in the camera to help determine the level. You can also use local materials to determine the height of the horizon by using vertical lines such as buildings and lampposts.
Seven: the focus of night shooting
Because the night scene is dark, it is often impossible to focus automatically, so we can focus on bright Gao Fancha objects, such as billboards and street lamps. If you still can't focus, you can only manually focus to the approximate distance or infinite distance. Because shooting night scenes is generally a distant view, using a small aperture and a large depth of field, the photos taken are generally clear.
Eight: the choice of white balance
When shooting night scenes, the choice of white balance also has great freedom. On cloudy days, the white balance will be warmer, while the white balance in tungsten lamp will be colder. Photographers can take a photo with different white balances at first, and then determine the best white balance through playback. The setting of white balance may be different because of different cameras, so it is best to shoot with your own camera. If you don't want to repeat shooting like this, set the white balance to automatic mode.
Nine: Selection of exposure parameters
Generally speaking, night shooting should choose low ISO, small aperture and slow shutter. Low ISO can make the picture cleaner and reduce the noise in the picture. Small aperture can not only get the star-awning effect, but also extend the shutter time, making the dragging effect of headlights more obvious. It should be said that the minimum aperture of some digital cameras is only F8-F 1 1. If you use this light source 15 seconds, it is easy to overexpose the picture, so when you want to make a long exposure, be sure to keep the lens away from the direct light of the nearby light source. If you don't pursue the long light band effect of traffic excessively, there is no need to extend the shutter time with the smallest aperture. Generally speaking, as long as the aperture is not greater than 5.6, it can meet the requirements of depth of field and star glare.