Shutter speed, light and motion

You've seen in previous classes that there are three factors that determine the total exposure of a photo: Shutter speed, aperture, and ISO value. This lesson will teach you more about the Shutter Speed. What is the effect of it on the exposure of the photo, and what special photos can you take with it.

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The shutter speed is the length of time light falls on the sensor when you take the photo. This appears in seconds, or parts of seconds.

  • Entire seconds are often indicated on the camera with two dashes behind the number ("), the parts of seconds are displayed as a break. 1/30 is 1 thirtieth part of a second. On some cameras, the 1/ is omitted and 30 represents a thirtieth part of a second. 
  • The longer the shutter speed is, the more light falls on the sensor.
        • In case of a photo that is too dark, you can set the shutter speed higher (longer), to the left on the figure to lighten the photo.
        • If the photo is too light, lower the shutter speed (shorter), to the right on the figure to darken the photo.
  • The shutter speed also affects the motion in the photo. A statue does not move, so you can choose a longer shutter speed if it is necessary for sufficient light. Left on the figure.

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