Exposure compensation is also an exposure control method, which is generally around ±2-3 EV. If the ambient light source is dark, you can increase the exposure value (such as +1EV, +2EV) to highlight the sharpness of the picture.
In the course of shooting, if a digital camera presses a shutter button, the picture on the LCD screen will be similar to the final picture. Focusing and exposure will start. The exposure at this time is the exposure of the final image. If the picture is obviously bright or dark, it means that the camera's automatic metering accuracy has a large deviation, and it is necessary to force the exposure compensation. However, sometimes the brightness displayed during shooting is different from the actual shooting result. The digital camera can view the screen immediately after shooting. At this time, the brightness and darkness of the captured image can be more accurately seen and there will be no more access. If the shooting result is obviously bright or dark, you must take another shot and force exposure compensation.
The shooting environment is darker and you need to increase the brightness. When the flash does not work, you can compensate for the exposure and increase the exposure appropriately. When performing exposure compensation, if the picture is too dark, increase the EV value. Every 1.0 increase in the EV value is equivalent to doubling the amount of light that is ingested. If the picture is too bright, reduce the EV value and decrease the EV value by 1.0. , the equivalent of twice the amount of light intake. The compensation interval for different cameras can be adjusted in units of 1/2 (0.5) or 1/3 (0.3).
When the white object being photographed looks gray or not white in the photograph, the amount of exposure should be increased. Simply put, "the more white it is, the more it is added." This seems to be contrary to the basic principles and habits of exposure, but it is not. This is because the metering of the camera tends to focus on the center of the subject, and the white subject will make the camera mistakenly think that the camera is very bright and environment, so the lack of exposure, which is common to most beginners.
Because the camera's shutter time or aperture size is limited, it is not always possible to reach the 2EV adjustment range, so exposure compensation is not a panacea, it may still be underexposed in too dark environment, this time to consider with the flash or increase The camera's ISO sensitivity increases screen brightness.
Almost all digital cameras have the same exposure compensation range, which can be added or subtracted within plus or minus 2EV, but the addition and subtraction are not continuous, but they are skipped by 1/2EV or 1/3EV. Earlier old digital cameras such as Kodak's DC215 were separated by 1/2EV, so there were -2.0, -1.5, -1, -0.5 and +0.5, +1, +1.5, +2 total 8 levels, and currently The mainstream digital cameras have more detailed sub-files, which are separated by 1/3EV, so there are -2.0, -1.7, -1, -1.0, -0.7, -0.3 and +0.3, +0.7, +1 .0, +1.3, +1.7, +2.0, etc. 12 levels of compensation.
In general, the smaller the scene brightness contrast, the more accurate the exposure, and vice versa. Cameras with high or low grades, high grades, metering is more accurate, low bias will increase. If it is a traditional camera, the latitude of the film is relatively large, and the exposure deviation will not be a big problem within a certain range. However, the digital camera has a relatively small CCD tolerance, and a slight exposure deviation may affect the overall effect.
In a word, the adjustment of exposure compensation is determined by the experience plus the sensitivity of the color. Users must compare the picture quality, clarity, reduction degree and noise size under different exposure compensation in order to take the best picture.
In the course of shooting, if a digital camera presses a shutter button, the picture on the LCD screen will be similar to the final picture. Focusing and exposure will start. The exposure at this time is the exposure of the final image. If the picture is obviously bright or dark, it means that the camera's automatic metering accuracy has a large deviation, and it is necessary to force the exposure compensation. However, sometimes the brightness displayed during shooting is different from the actual shooting result. The digital camera can view the screen immediately after shooting. At this time, the brightness and darkness of the captured image can be more accurately seen and there will be no more access. If the shooting result is obviously bright or dark, you must take another shot and force exposure compensation.
The shooting environment is darker and you need to increase the brightness. When the flash does not work, you can compensate for the exposure and increase the exposure appropriately. When performing exposure compensation, if the picture is too dark, increase the EV value. Every 1.0 increase in the EV value is equivalent to doubling the amount of light that is ingested. If the picture is too bright, reduce the EV value and decrease the EV value by 1.0. , the equivalent of twice the amount of light intake. The compensation interval for different cameras can be adjusted in units of 1/2 (0.5) or 1/3 (0.3).
When the white object being photographed looks gray or not white in the photograph, the amount of exposure should be increased. Simply put, "the more white it is, the more it is added." This seems to be contrary to the basic principles and habits of exposure, but it is not. This is because the metering of the camera tends to focus on the center of the subject, and the white subject will make the camera mistakenly think that the camera is very bright and environment, so the lack of exposure, which is common to most beginners.
Because the camera's shutter time or aperture size is limited, it is not always possible to reach the 2EV adjustment range, so exposure compensation is not a panacea, it may still be underexposed in too dark environment, this time to consider with the flash or increase The camera's ISO sensitivity increases screen brightness.
Almost all digital cameras have the same exposure compensation range, which can be added or subtracted within plus or minus 2EV, but the addition and subtraction are not continuous, but they are skipped by 1/2EV or 1/3EV. Earlier old digital cameras such as Kodak's DC215 were separated by 1/2EV, so there were -2.0, -1.5, -1, -0.5 and +0.5, +1, +1.5, +2 total 8 levels, and currently The mainstream digital cameras have more detailed sub-files, which are separated by 1/3EV, so there are -2.0, -1.7, -1, -1.0, -0.7, -0.3 and +0.3, +0.7, +1 .0, +1.3, +1.7, +2.0, etc. 12 levels of compensation.
In general, the smaller the scene brightness contrast, the more accurate the exposure, and vice versa. Cameras with high or low grades, high grades, metering is more accurate, low bias will increase. If it is a traditional camera, the latitude of the film is relatively large, and the exposure deviation will not be a big problem within a certain range. However, the digital camera has a relatively small CCD tolerance, and a slight exposure deviation may affect the overall effect.
In a word, the adjustment of exposure compensation is determined by the experience plus the sensitivity of the color. Users must compare the picture quality, clarity, reduction degree and noise size under different exposure compensation in order to take the best picture.
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