Shutter speed = the amount of time the shutter is open
Shutter = is a curtain in front of the camera sensor that stays closed until the camera fires
- A fast Shutter speed is measured in fractions of a second e.g 1/100
- The bigger the denominator (the number at the bottom) the faster the speed e.g 1/300 is faster than 1/200
- Very slow shutter speeds are not measured in fractions, but just in seconds e.g 1 second, 10 seconds, 25 seconds etc.
- If you want to freeze movement in a moving object (car, bird): use a fast shutter speed
- If you want the image blurred in the moving object: use a slower shutter speed
The above image is an example of a slow shutter speed, as the entire image is blurred. The shutter speed for this image was low.
In this image, the shutter speed used was a high shutter speed, so the movement of the car was slowed down and the image was not blurred.