With your camera, you are trying to take a photograph of a bird that is flying far away from you. In order to magnify its image, you are swapping your standard 20- mm focal length lens with a telephoto lens that has a much bigger focal length of 620 mm. By how much is the image of the bird magnified compared to your standard lens?
With your camera, you are trying to take a photograph of a bird that is flying far away from you. In order to magnify its image, you are swapping your standard 20- mm focal length lens with a telephoto lens that has a much bigger focal length of 620 mm. By how much is the image of the bird magnified compared to your standard lens?
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Transcribed Image Text:With your camera, you are trying
to take a photograph of a bird
that is flying far away from you. In
order to magnify its image, you
are swapping your standard 20-
mm focal length lens with a
telephoto lens that has a much
bigger focal length of 620 mm.
By how much is the image of the
bird magnified compared to your
standard lens?
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