Question:

What can the camera do which the eye cannot do?

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Could you please enumerate the things the camera can do but the eye cannot?

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  1. Accumulate light over long exposures.

    Be sensitive to part of the spectrum our eyes cannot perceive (infrared or ultraviolet).


  2. The camera can fix an object image but the eye can not.

  3.   Capture events that are very fast - bullets moving, explosions, shock waves.  If any kind of camera, then capture very slow events in a sequence of pictures - plant growth, erosion, construction.  

    Capture events which are very dim by accumulating light - stars, asteroids, planets moving.

  4. Freeze an image.

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