. In the two centuries since their invention, cameras have become extremely easy
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Question
. In the two centuries since their invention, cameras have become extremely easy to use. Despite all of the technological improvements, however, photography still employs many of the same principles it did in the 1800s.
A. Increasing a lens
In the two centuries since their invention, cameras have become extremely easy to use. Despite all of the technological improvements, however, photography still employs many of the same principles it did in the 1800s. Increasing a lens's diameter increases its light-gathering capacity and decreases its f-number. Increasing a lens's focal length decreases the brightness of its real image and increases its f-number. Doing both at once, increasing the lens diameter and focal length equally, leaves the brightness and f-number unchanged. All of the above.Explanation / Answer
D
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