Explanation

Shutter speed is measured in seconds (or fractions of a second).

It represents the length of time the camera's shutter is open.

It controlling the amount of time light enters the camera.

Shutter speed is measured in fractions of a second or whole seconds:

• Fractions of a second

Shutter speeds measured in fractions of a second, such as 1/10 or 1/500, indicate how long the shutter is open.

• Whole seconds

Shutter speeds measured in whole seconds, such as 1s or 10s,