What does white balance mean? What's the use of customizing white apartments? Which white balance mode do you usually use?

There are usually three modes to adjust the white balance of digital cameras; Automatic white balance, step-by-step white balance setting and precise white balance setting (manual setting mode). Different cameras have different ways to adjust the white balance. Most popular digital cameras use automatic white balance. Most quasi-professional digital cameras are equipped with grading to set the white balance. Professional digital cameras are equipped with accurate white balance (manual setting mode). Professional digital cameras have three modes of white balance, and quasi-professional digital cameras have automatic and step-by-step setting of white balance. Can be selected according to different use requirements.

Automatic white balance relies on the color temperature measurement system in digital camera to measure the relative proportion of red light and blue light. Then adjust the exposure according to the secondary data to generate the gains of red, green and blue electrical signals. The biggest advantage of automatic white balance is that it is simple and fast. But sometimes shooting according to its adjustment is far from accurate color reproduction. Sometimes it helps.

Setting white balance by grade is divided into two categories according to light source type and color temperature value. At present, most digital cameras are classified according to the types of light sources. There are icon stalls for sunshine, cloudy day, fluorescent lamp, incandescent lamp and flash lamp on the camera respectively. When shooting, just match the type of light source with the white balance gear on the camera, and you can shoot more accurate colors. However, due to the lack of grading, the grading accuracy is not high, and it is impossible to accurately record colors when shooting under some special lighting conditions. Theoretically, the white balance accuracy classified by color temperature is higher than that classified by light source type. However, it requires users to remember the color temperature values of various light sources, which brings great trouble to users. So there are fewer cameras using this hierarchical white balance.

Accurate white balance (manual setting mode) is to adjust the white balance by filling the lens field of view with white paper or white objects when shooting the scene light. After such debugging and re-shooting, the recorded color will be very accurate, which is the most accurate white balance adjustment method at present.

The function of white balance has brought us a lot of convenience and unexpected effects in photography. For example, studio photography, there is no need to have such high requirements for the color temperature of lights. You can still shoot accurate colors under incandescent lamps. We don't have to worry about the blue color brought by fluorescent lamps. We can set the white balance at a higher color temperature and shoot at a lower color temperature to make the picture warm. On the contrary, it can also be set under the condition of low color temperature, and high color temperature shooting can also produce special effects. When setting different levels of white balance, the light source file can also be deliberately set to be different from the scene lighting settings, and it can also produce different artistic effects.