How to snap a good photo in an instant?

As the most common technique in photography, it is basically difficult to capture. Capture not only needs flexible and diverse methods, but also needs corresponding capture technology. The organic combination of the two can effectively improve the quality of snapshots. With the rapid development and progress of photographic equipment and the widespread use of snapshots, snapshot technology is also obviously diversified. Commonly used snapshot techniques are: ① high-speed snapshot. Capture with high-speed fast film and high-speed shutter. For example, some difficult movements in sports, dancing, wrestling, running and horse racing in folk activities. , are rapidly changing, fleeting, you can't catch up with the high speed. ② Grasp at low speed. It is often used when shooting people with little activity, such as shooting indoor people's activities or live portraits. In order to express the spatial relationship naturally and vividly, we need to use live light, small camera, fast film, slow door and large aperture. If the aperture of a small camera is F2.8, it can have a better depth of field; If you use F 1.4 and F2 to shoot people on the spot, as long as you can use the side backlight, you can also have a certain stereoscopic effect. Indoor snapshots, except for large aperture, often need to use low-speed slow gate, usually1/30-115-1/8-1/4, or even longer. It would be better to have a tripod at this time. Don't use a tripod, practice the hard work of slow door shooting: hold the camera steady, hold your breath and press the shutter gently. In order to keep the camera stable, you can lean the camera against the wall and back of the chair to form a supporting shot. (3) Hold on tight. Shoot close to the subject. At this time, with a standard lens or a wide-angle lens, not only the close-up of the object can be photographed, but also the group activities of the object can be photographed, and the activity environment of the object can be photographed into the picture. If the light is good and the activity of the object is not great, you can use a small aperture, hyperfocal distance. The light is weak, so you can use a large aperture or a slow speed. When shooting close-range, you can take a view through the viewfinder, or you can lift the camera without looking at the frame; Under special circumstances, when you need to take a sneak shot, you can hang the camera on your chest or hold it in your hand, and you can press the shutter without looking at the frame, but you must estimate the distance and the size of the image on the negative in advance. 4 grasp far. Shoot from a distance with a telescope or zoom lens. Using this snapshot technology, the subject will not feel constrained. A telephoto lens can highlight the expression of an object and can take close-ups of the object. The disadvantage is that the activity environment of the object cannot be fully expressed. Because the depth of field is small, it is necessary to adjust the focal length. It is not easy to make clear works when the light is weak. ⑤ Catch up. That is, an upcoming snapshot of the object. In the case of strong light or mainly relying on flash, you can shoot with standard or wide-angle lens, small aperture and hyperfocal distance; You can also keep a certain distance from the object, set a focus position and press the shutter when the object reaches this position. ⑥ Follow and catch. Shoot objects that move laterally. At this time, it is necessary to estimate the distance in advance. When an object passes in front of the camera, press the shutter while following the object. Follow-up includes horizontal follow-up and vertical follow-up; Arc tracking and longitudinal tracking, etc. The shooting points of horizontal follow-up are as follows: firstly, the shutter speed should not be faster than 1/30 seconds. The slower the shutter, the longer the line drawn by the background and the stronger the dynamic sense of the subject; Second, the background should have spots composed of light spots or contrast between light and shade. If the background is a tone without any light and dark changes, the photos taken are not dynamic; Third, when shooting, the camera should rotate synchronously with the object, that is, the photographer stands in situ and rotates around his waist. It should be noted that in the process of rotation, try to keep the predetermined relative position of the object in the view frame. Press the shutter when the angle and action are appropriate. Also note that the rotation cannot stop when the shutter is pressed. In this way, the subject image in motion is basically clear, while the background can present a series of horizontal lines, and people are flying. Horizontal follow-up is the most commonly used and basic follow-up method, and the essentials of other follow-up methods are similar, so it can be used flexibly in practice. With the appearance of zoom lens, zoom-following shooting technology appeared: when the object approaches, the lens expands and contracts while pressing the shutter, resulting in radioactive virtual shadow in the background of the object. When shooting, the camera should move smoothly and parallel without vibration; Shutter speed should adapt to the size of the object movement and the degree of shadow required by the picture. Low speed shutter tracking may blur the subject itself. ⑦ Side grab. Shooting from the side of the object does not need to cause a virtual shadow of the background. At this time, the shutter is selected according to the amount of time and speed of image activity, and then the aperture is determined. It is usually necessary to use a faster shutter to ensure the clarity of the image. Fixed focus method is either a predetermined focus position or visual inspection and quick focus. When the activity of the object is very small or basically motionless, you can take a close-up of the side of the object with a telephoto lens. Generally speaking, it is better to shoot people's activities from the side with standard and wide-angle lenses. ⑧ Grasp behind your back. In recent years, there are more and more works that capture people's activities from behind, and some works have even become masterpieces and won awards. The work "The Test of Strength" reflects the scene of a farmer rebuilding a mountain temple tourist spot and lifting a stone. Capturing from a low angle behind fully shows the difficulty of climbing the mountain and the strength of people. This kind of lens, if shot from another angle, will not be so good.