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How a Camera Works

Name: Date: Period:

How a Camera Works

Complete this worksheet while viewing How Cameras Work by Tom Harris on the How Stuff Works site.


  1. Define the following key words from the article before beginning to read:

    1. Single Lens Reflex Camera (SLR)

    2. Subject

    3. Film

    4. Optical

    5. Chemical

    6. Mechanical

    7. Calibrate

    8. Lens

    9. Convex

    10. Concave

    11. Obtuse

    12. Diverging

    13. Converging

    14. Constant

    15. Acute

    16. Exposure Time

Introduction to How Cameras Work

  1. Of what three basic elements is a still film camera composed?


Bending Light

  1. What happens to light when it enters a lens? Explain.



Focus

  1. In what way does the distance of a subject from the lens affect the angle of light entering? Does light enter the lens at a sharper or wider angle if the object is close? Far away?


  1. How does this affect the light exiting the lens? Does light exit the lens at a sharper or wider angle if the object is close? Far away?


  1. How does this affect focus? Explain.




Pinhole Cameras

  1. How does a pinhole camera work?







  1. How does a pinhole lens differ from the lens on a single lens reflex camera?







Go to the Pinhole Gallery and browse among the photos of other pinhole artists.


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Tags: camera works, pinhole camera, works, period, camera, complete