What are the three elements of photography?

What are the three elements of photography?

Do you know what are the three elements of photography? The camera is the eye of photography, through which we can always keep what our eyes and brains can't. Exposure, focusing and composition are the three elements of photography. It is essential to understand these three elements if you want to learn photography well. Here are three specific concepts and photography skills. Let's have a look.

What are the three elements of photography? Three elements of photography

1. exposure

By focusing and adjusting the shutter speed, the appropriate exposure can be controlled. Most digital cameras can control exposure by auto-focusing and adjusting shutter speed. This is the function of automatic exposure photography (AE). Although it is called automatic exposure, it can't be adjusted to the most appropriate exposure every time. Sometimes the picture is too dark (underexposed) and too bright (the exposure knows the transition). When this happens, the function of correction is exposure correction.

be concentrated

The human eye will automatically focus on what it wants to see, so that we can see everything clearly. The lens of the camera will focus more vividly on the object to be photographed. The focal length is adjusted through the lens, while the digital camera has the function of automatically adjusting the focal length. This is the automatic focusing (AF) function. Although you can focus automatically, it is up to the photographer to decide which point to focus on.

Step 3: Composition

The human eye can watch up, down, left and right continuously. But photos can only be observed and recorded from a rectangular range. Through the viewfinder or LCD, a very small part is selected as the shot picture in a large range, which is called framing. Recently, cameras are gradually developing towards automatic exposure and autofocus. However, no matter how professional, framing cannot be completely automated. So composition is the most important factor.

What are the three elements of photography? 2 photography skills.

1. Sixteen rules of sunshine

"Sixteen sunshine rules" is a method to correctly estimate the exposure value in the sun without an exposure meter, so this rule is only suitable for use in sunny conditions. Set the aperture to F/ 16, and the shutter is synchronized with ISO, or slightly faster. For example, if ISO is set to 100, the shutter will be set to1100 seconds (1125 seconds). Therefore, according to this rule, F/22 aperture should be used for shooting on the beach and F/ 1 1 aperture should be used on cloudy days.

2. moonlight 1 1, 8 and 5.6 rules

If you want to photograph the moon, here is a good rule. When the shutter is synchronized with ISO, F 1 1 aperture is used for shooting the full moon, F8 aperture is used for crescent moon, and F5.6 aperture is used for crescent moon.

3. Camera jitter rules

When you shoot with a camera in your hand, the shutter speed should not be less than the reciprocal of the focal length of the lens. If the shutter speed is slow, the sharpness is more likely to decrease when shooting jitter. If a focal length of 50mm is used, the shutter should be above 1/60 seconds. Only when the environment is really dark, use a flash, tripod or put the camera on a hard object to prevent jitter.

4. Grey cardboard rules

18% medium gray board is a sharp weapon for shooting. But what if I don't have a gray board on me? You can open your palm to face the sun, measure the light on your palm, and then increase the exposure.

5. The law of depth of field

The depth of field in the back is twice that in the foreground. When the subject is deep, the focus should be in front of 1/3 of the depth of field, because the depth of field after focusing is twice as large as before. This rule can be used in various combinations of aperture and focal length. Remember, the smaller the aperture, the shorter the focal length, and the farther away from the subject, the greater the depth of field.

6. Digital printing size rules

If the work is to be printed as a large-size photo, the size of the photo should not be larger than the length, width and pixels of the digital picture divided by 200, and if the work is very demanding, it should be divided by at least 250.

7. Exposure rules

When dealing with digital photos, the most common rule is to ensure the accurate exposure of high-light areas and let low-light areas go with him. But when dealing with negative films, especially color negative films, you'd better expose one file.

8. Fast Flash Output Rules

When your camera cannot automatically output the control flash, set the sensitivity of the flash to twice that of the film. If the body measures light, select the full aperture of the body and set the flash to the same aperture. In this way, the shadow area of the photo will be one step lower than the brightness of the subject.

9. Flash distance rule

This rule is simple: distance times 2, sensitivity times 4. For example, when your flash is at ISO 100, the effective distance is 20 meters. If you want the distance of the flash to reach 40 meters, you need to increase the sensitivity to ISO400.

10. pixel doubling rule

If you want to double the resolution of a digital camera, it's easy to quadruple the pixels.

1 1. Capture the dynamic law

This rule is based on the empirical formula of angle and speed. If an object moves along the lens axis, you can capture it with the shutter of1125, then its movement behind the lens axis can be captured with 1/500 seconds. That is to say, when the object moves 45 degrees along the lens axis, it only needs a shutter speed of 1/250.

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When shooting a sunset, measure the light above the sunset, but don't let the sun appear in your viewfinder. If you want the sunset to appear one hour later than the actual one, you can subtract 1 from the exposure compensation.