What do WB, ISO, S and EV on the camera mean?

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WB is the abbreviation of White Balance, and its Chinese name is White Balance.

In the process of photography, the picture may have a color cast. But if white in real life can be photographed as white, other colors will be accurately restored.

Now, machines are very intelligent. In general, using automatic white balance mode is enough. The English code name is AWB (Automatic White Balance).

In addition, digital cameras also provide some proprietary white balance modes, such as sunlight, fluorescent light, flash, cloudy day, cloudy day and so on. But I use it less.

However, this proprietary white balance mode can be used for special creation. For example, if you take a picture in the sun, but you use the cloudy white balance mode, the picture will have a color cast and may have a special visual aesthetic feeling.

International Organization for Standardization (ISO)

ISO is the sensitivity, which refers to the sensitivity of CCD to light. The higher the ISO value, the higher the sensitivity.

In low light environment, ISO is commonly used. Because the light reflected by the subject is very small, even if the aperture is very large, it is impossible to capture the action moment of the subject with a high shutter speed. And improving sensitivity can easily solve this problem.

However, the higher the sensitivity, the heavier the graininess of the picture.

S

S stands for speed, which means speed. S is synonymous with Nikon camera shutter priority mode.

Shutter priority means that the photographer manually selects the shutter speed, and the camera will automatically match an aperture size. This mode will be more practical if you often shoot moving objects. Otherwise, it is recommended that you use aperture priority mode, that is, A mode or AV mode.

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EV stands for exposure compensation and is divided into+and-values. Exposure compensation increases, the picture will be brighter, otherwise it will be darker.

Give you a formula: white plus black minus. When there is a large area of white in the picture, the exposure compensation should be increased, and when there is a large area of black, the exposure compensation should be reduced.