How to control the picture Nikon D5200 exposure compensation is fully mastered (full text)

Exposure compensation is an effective method to control photo exposure. When taking photos, photographers can set exposure compensation according to their own ideas to make the photos appear darker (reduce exposure) or brighter (increase exposure), creating a unique visual effect. The exposure compensation is adjusted in EV (exposure value), and 1EV is equal to 1 aperture. The exposure compensation of D5200 can be adjusted from -5EV to +5EV in increments of 1/3EV, with a total range of 10. Photographers can adjust the positive and negative exposure according to their own experience and the actual situation of the shooting scene. In manual mode (M), exposure compensation only affects the exposure indication, and the shutter speed and aperture will not change. After using this setting, be sure to reset the exposure compensation value to 0 to avoid unnecessary underexposure or overexposure. How to set the principle of contrast exposure compensation with different exposure compensation effects? The metering system on the camera is based on 18% neutral gray, so generally speaking, positive exposure compensation is used when shooting white objects, and negative exposure compensation is used when shooting black objects. Increase the exposure compensation value to shoot light-colored objects. Under normal exposure, when the camera shoots a white subject, the whole picture will appear gray, which is difficult to show the brightness we see with the naked eye. At this time, the photographer needs to increase the exposure compensation value to shoot, in order to get the photos with normal exposure. Reduce the exposure compensation value to shoot dark objects. Under normal exposure, the camera takes a black subject or a whole dark picture, and the whole image is bright, which loses the sense of weight of the subject itself. At this time, the photographer needs to move the exposure compensation to the negative direction, so that the black color will be pure and the subject image will be thicker. For different brightness backgrounds, the principle of bright and dark. When the background brightness is high and the subject brightness is low, it is necessary to increase exposure compensation; When the background brightness is low and the subject brightness is high, it is necessary to reduce the exposure compensation. When one or several actors are performing on the stage, one or two spotlights are often used to illuminate the actors in order to attract the attention of the audience. At this time, other backgrounds on the stage will appear almost black because there is no light. At this time, unless the performer happens to be in the center and shoots in spot metering mode, negative exposure compensation must be adopted to prevent the subject from overexposure. The easiest way to judge whether to adjust the exposure compensation by looking at the histogram is to preview the image. However, this method can't judge the compensation value that needs to be used most accurately. To determine exactly how much exposure compensation needs to be increased or decreased, you can look at the histogram. Histogram is an intuitive representation of image tone, which depicts the dark side and middle tone of the image. From left to right in the histogram is the ratio of black, gray and white in the picture. If most of the information displayed in the histogram is concentrated on the left side, the shot image is likely to be underexposed; If the displayed information is concentrated on the right, the image may be overexposed. Ideally, for objects that are not particularly bright or dark, most of the tones in the histogram should be located in the middle area. Flash exposure compensation Flash exposure compensation is a function setting for the camera to adjust the flash intensity when shooting. When shooting, whether the camera's external flash or internal flash is used, it is possible that the flash causes the subject in the image to be too bright or too dark. Using flash exposure compensation, the output power of flash can be adjusted manually while still maintaining TTL reading, so the exposure generated by flash is still roughly correct. D5200 has a built-in flash, and the TTL of the flash can be set manually, and the amount of flash can be changed in increments of 1/3EV from -3EV to+1EV, so as to effectively grasp the brightness level of the whole picture. If flash compensation is combined with exposure compensation, exposure value will increase. The difference between exposure compensation and flash exposure compensation. Exposure compensation is to fill the photo by controlling the aperture and shutter speed, while flash exposure compensation is to fill the photo by controlling the output power of the built-in flash. The distance between the subject and the background is the biggest difference between flash exposure compensation and ordinary exposure compensation. When the distance between the object and the background is far enough, the exposure compensation of the flash lamp mainly considers the metering mode and the reflectivity of the object, and no longer considers the background, because the brightness change of the flash lamp on the background can be ignored; Ordinary exposure compensation must always consider the brightness of the background. The above pictures and texts are taken from the book Nikon D5200 digital SLR photography from entry to proficiency by People's Posts and Telecommunications Publishing House. The price of Shenlong photography is 89.00 yuan. Photography is an art, which needs to convey creative ideas through various means. It is not only the photographic equipment that plays a role, but also the photographer's mastery of technology and understanding and deconstruction of the scene from the moment he gets the camera and presses the shutter, in order to take a good photo that everyone praises. It's not easy, but it must be out of reach. See more, learn more, think more and practice more, and wonderful photos will be born in your hands. "Nikon D5200 Digital SLR Photography from Entry to Mastery" introduces the photography knowledge and creative ideas step by step from the simple to the deep from the setting, basic operation, shooting skills and shooting of various themes of Nikon D5200 camera, and explains the rich and effective shooting skills in detail through a large number of examples, telling readers how to realize the shooting intention and form their own unique style. 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