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Author Question: A camera gives a correct exposure at f/4 with a shutter speed of 1/128 s. In order to increase the ... (Read 73 times)

ereecah

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on: Jul 28, 2018
A camera gives a correct exposure at f/4 with a shutter speed of 1/128 s. In order to increase the depth of field, the f-stop is changed to f/8. What shutter speed will now give a correct exposure if lighting conditions do not change?
  1.1/512 s
  2.1/256 s
  3.1/32 s
  4.1/16 s

Question 2

Camera 1 has a lens with f-number 11 and camera 2 has a lens with f-number 2.8. Which camera has the faster lens (i.e., it can take a properly exposed picture with the shortest exposure time), and which camera will give the greatest depth of field (i.e., the widest range of distances with sharp images)?
  1.1, 1
  2.2, 2
  3.1, 2
  4.2, 1


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macagn

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Reply #1 on: Jul 28, 2018
Answer to Question 1

3

Answer to Question 2

4


ereecah

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Reply #2 on: Jul 28, 2018
Thank you!


macagn

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Reply #3 on: Jul 28, 2018
Always glad to help...


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