I Take Two Pictures of My Dog Kaycee

question 78

Multiple Choice

I take two pictures of my dog Kaycee.I use the same film and level of illumination for both pictures,but I triple the f-number for the second picture.By what factor will the required time of exposure change if the film is to receive the same total light energy?

• A)0.11
• B)0.33
• C)3.0
• D)9.0

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Unsorted Records

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Statistic

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