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How Do Cameras Take Pictures?

How Do Cameras Take Pictures?

照相机是怎么拍照的?

  1. Cameras use light to capture images on film or chips.
  2. Light enters through a glass lens at the front.
  3. The lens focuses light onto a sensor or film inside.
  4. A shutter opens for a short time to let light in.
  5. Bright scenes need less time; dark scenes need more.
  6. Digital cameras turn light into numbers and save them.
  7. Old film cameras use chemicals to fix the picture.
  8. All cameras need light — no light means no photo.
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