How Does a Camera Shutter Work?

Your Camera Is a Dark Room

1 2 He’s waiting for the light… The window is your shutter! ① First curtain opens Light gets in! ② Second curtain closes
  • Your camera is a dark room. Light only gets in when the curtains open.
  • Curtain 1 opens. Light pours in. Curtain 2 closes. That’s the shutter.
  • Shutter speed is how long the curtains stay open.
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