Focus on Photography

Question 3

Exposure

The shutter speed is responsible for exposure. It controls the amount of time light is allowed to reach the film or sensor.

SHUTTER SPEED

Shutter speed is measured in fractions of a second. 125 means 1/125th of a second, 60 means 1/60. Typical shutter speeds range from 1 second to 1/1000. A shutter speed setting for a bright, sunny day - using an aperture of F11 - might be 1/125 second. A cloudy day might use 1/60 second with the same aperture, exposing the film or sensor to light for a longer period of time.


OK