How is Shutter Speed measured?

• Shutter speed is measured in seconds, or fractions of a second, which will look like these examples: • 1/80 – means one eightieth of a second. Most cameras will just show the number “80″ • 1/100 – means one one-hundredth of a second. Most cameras will just show the number “100″ • 1/400- means one four-hundredth of a second. Most cameras will just show the number “400″ • 1″ – means one full second. Most cameras will show ” 1″ “ • Shutter speed can have bigger and smaller numbers, but you got the point, right? • Because your camera is usually only showing the bottom part of the fraction, the BIGGER the number, the FASTER the shutter speed, the LESS light enters your camera. This means that your exposure is SHORTER, the image will be DARKER. Imagine this: the faster the shutter opens and closes, then obviously, less light comes through. If you stand in front of your window and open/close the window shutters fast, you have less light entering the room. • Fast = less light = big number. ...  more