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Optics and Cameras

  1. Jul 30, 2008 #1
    1. The problem statement, all variables and given/known data

    Why does a camera get wider/longer?

    2. Relevant equations


    3. The attempt at a solution

    Well, I assume that it is to produce the largest image that can possibly be on the film. But I'm a little confused on the question as a whole? Am I on the right track and what can I add on to what I think thus far?

    Thanks in advance for your help! It is totally appreciated!
  2. jcsd
  3. Jul 30, 2008 #2


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    It'sa little confusing, can you post the complete question?
  4. Jul 30, 2008 #3
    If it is desirable to produce the large image, then why does the camera get wider/longer?

    I agree, I'm not sure what the question is exactly asking! Thanks for your help thus far!
  5. Jul 30, 2008 #4


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    Not sure what it's asking but:
    To make a large image you want a large negative, the minimum detail siaze on a film (or a CCD) is a fixed sizeso to get more detail/pixels you need bigger film (or CCD).

    In a perfect camera you are limited by diffraction, the larger the lens the less the effect of diffraction
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