Underexposure can ruin your images. But what is it? In basic terms it is when not enough light reaches the sensor. This results in a dark, dull and lifeless image.

Why does it happen?

To capture a good image the camera chooses a combination of shutter speed and aperture according to the calculations made within the meter. Shutter speed is how long the shutter is open (and therefore, letting in light) and aperture is the size of the hole in the lens.

At most times, the camera will produce fine results and select the correct settings for the camera. Occasionally, the camera will make the wrong calculations for the subject. This is because the camera only averages the total light coming in. When shooting on manual settings, the photographer sometimes sets the wrong settings.

In these situations, there is not enough light coming into the camera. This results in