Traditional Culture Encyclopedia - Photography major - Introduction to classic photography skills
Introduction to classic photography skills
Use exposure compensation skillfully to determine the details of light and shade.
Exposure compensation and bracketing exposure are widely used in photography practice. Although the metering system of digital cameras has been very intelligent and perfect, it is difficult for scholars to provide 100% accurate exposure control when they encounter some complicated shooting scenes, such as excessive illumination ratio in the picture, or night scenes, ice and snow. At this point, exposure compensation and ambient exposure can be of great use.
Exposure compensation refers to adjusting the exposure value according to the exposure data obtained by digital camera photometry. You can select spur gear and negative gear within the adjustment interval of 1/3 or 1/2. In this example, in order to get the correct bright exposure of the snow scene, the exposure is increased by one step.
: control the reality and highlight the subject through the depth of field.
There are many ways to strengthen the subject in the picture, among which strengthening the subject through depth of field takes advantage of the change of reality and reality. This technique is not difficult for beginners to use. As long as the shooting distance, lens aperture and lens focal length are well adjusted, the only clear focus in the picture can be reasonably focused on the main body of the picture that the photographer wants to focus on.
It should be noted that the method of enhancing the subject by depth of field must choose the appropriate shooting angle when composing. Let the plane where the subject and other elements are located not be parallel to the focal plane of the digital camera, thus creating the possibility of picture change. At the same time, we should pay special attention to the control of the depth of field to prevent the subject from being shallowly weakened because of the excessive depth of field, and get the opposite effect.
Subtraction art of composition, highlighting the main body of the picture
Failed photos have their own problems, while successful photos are often * * *. In many cases, the job of composition is to avoid other central elements that may interfere with the expression of the picture while choosing a reasonable viewing angle and a reasonable framing range.
This seemingly simple truth and method is difficult for many filmmakers to really implement, and greed is a common problem for beginners of composition. For the application of subtraction, how should we choose among many elements in combination with the subject of the subject? If you don't have the heart to give up most of them, it is difficult to really express the most essential elements. You know, when there are too many juxtaposed elements in the picture, the reader's attention will be quickly dispersed. Even if there is an obvious subject, when the subject and some irrelevant elements appear at the same time, its visual effect and readers' attention will be seriously disturbed and affected.
Therefore, the beginner's framing method is to adjust the shooting angle and lens focal length, avoid useless elements, and select the essence to express.
Flexible use of metering mode to express the theme and shooting intention of the picture.
The correct selection of metering mode is an important factor affecting the success of a photo exposure. The metering function of digital cameras is often ignored by movie friends. Although digital cameras can perform automatic metering operation in various shooting modes, the lighting conditions of shooting scenes are very different, and the preset metering modes are not all competent. When the illumination and background of the subject are very different, the spot metering mode can be selected.
In the spot metering mode, the camera measures the area around a pair of focal points in the image, accounting for about 3% of the picture, to ensure the correct exposure of this area, while ignoring the metering of other parts of the picture. Using spot metering to measure the subject can expose the subject correctly.
Practical application of classical golden section theory
Ancient Greek mathematicians found an aesthetic law when dividing line segments, which was called the golden section law by later generations. The content of the golden section law is to divide a line segment into long segments and short segments, so that the ratio of short segment to long segment is equal to the ratio of long segment to total length of line segment, and the ratio is 1: 1.6 18. This ratio has always been considered as the most aesthetic ratio. Widely used in architectural design, painting, sculpture and other artistic creation fields.
The application of golden section rule in photographic composition skills also has strong aesthetic value. When determining the position of the subject, the cinematographer can refer to the golden section law and arrange the subject in the left or right position of the center of the picture, which avoids the rigid feeling of placing it in the center of the picture and can make the picture lasting without losing the sense of balance.
A safe shutter is the key to taking clear photos.
What does the safety shutter mean? It refers to the shutter speed that ensures that the picture does not shake and is stable enough when taking pictures with hand-held DSLR. If the shutter speed is higher than the safety shutter, the stability of hand-held shooting can be guaranteed and the picture will not be empty.
Most importantly, the security shutter is not constant. The speed of the safety shutter is related to the focal length of the lens used in shooting. The safe shutter speed is the reciprocal of the focal length, that is, the safe shutter speed = 1/ focal length.
For example, in a dim environment, shooting with a lens focal length of 30mm must ensure that the shutter speed is faster than 1/30s. Only in this way can we ensure that the digital photos taken are clearer and the shooting can be successful.
The above shooting skills, memorized by heart, will help you cope with many difficult shooting scenes.
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