Zooming your cameras lens for telephoto shots increases the focal length. With no change
Chapter 31, Problem 82(choose chapter or problem)
Zooming your cameras lens for telephoto shots increases the focal length. With no change in the lens area, this will a. increase the f-ratio and increase the lens speed. b. decrease the f-ratio and decrease the lens speed. c. increase the f-ratio and decrease the lens speed. d. not change the f-ratio or the lens speed.
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