Does Canon 6d2 need a flash?

Cameras generally have built-in flash, but the flash index is relatively small, mostly 12. If such a small flash is obviously not enough in a large scene, such as a large stadium, then an external flash must be used. According to the flash index, there are 24, 36, 40, 42, 58 and so on. The greater the flash index, the greater the distance and range of taking pictures.

SLR cameras need to be equipped with flash: when the light is insufficient, use flash to fill the light. When the color is off, you can use the flash to correct the color. When the contrast is high, you can use a flash to reduce the contrast.

Extended data:

Opening conditions:

1, lack of light, fill light, the most common situation at this time, lack of light is relative, not necessarily a dark environment, such as shooting against the light on a sunny day, when the subject is short of light. In this case, pay attention to the light ratio between the foreground and the background, and don't flash a bright foreground or a dark background.

2, remove bad shadows, the most typical situation is direct sunlight, forming too strong shadows on the face, which can be weakened by positive flash. Be careful that the light is not too strong. If necessary, use a household filter to adjust the color temperature. It is best not to see the trace of fill light at a glance.

3, fixed light, such as the exhibition runway and other noisy situations, it is almost impossible to accurately expose with natural light, and use a flash to suppress ambient light to achieve appropriate exposure and white balance.