How to Balance Light in the Camera
It’s exposure. Exposure is the amount of light that hits the camera sensor. It’s consists of three parameters: ISO, shutter speed, and aperture.
Aperture is how wide the camera lens are open. The larger the hole, the more light it can capture.
Shutter speed is how long the camera lens spends taking a photo.
ISO means how sensitive the camera to the light. A higher ISO means more sensitive to light, it allows the camera to capture more light in low light situation. But, higher ISO means more noise. Lower ISO means less sensitive to light, but better in well-lit environments.