Novice photographers must learn how to use the flash.

1, automatic flashing: The popular saying is that the flash automatically turns off when the light is sufficient (automatic mode) and flashes automatically when the light is insufficient.

2. Forced flash: In any case, the flash will be lit to fill the light.

3. Forced non-flashing: The flash will not flash under any circumstances. This function is most commonly used in aquariums or antique exhibition halls.

4, night scene mode: also known as flash slow synchronization function. In other words, at night, the camera shutter turns on the flash and flashes at the same time. Due to the lack of light at night, the camera will slow down the shutter speed and let more light enter the lens.

5, reduce red-eye function: due to lack of light at night, people's eye pupil should enlarge and absorb more light to see the object clearly, the camera's flash will light up to fill the light because of lack of light, and the human eye will shrink immediately when it encounters strong light to reduce the damage of strong light to the eyeball. At this time, people's eyeballs and pupils are congested around the camera, which just takes a moment of eyeball congestion and forms a red eyeball phenomenon.