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Suppose a camera’s exposure is correct when the lens has a focal length of 8.0 mm. Will the picture be overexposed, underexposed, or still correct if the focal length is “zoomed” to 16.0 mm without changing the diameter of the lens aperture? Explain.

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Sadha
SadhaLv10
26 Mar 2021

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Suppose the lens of a digital camera has a focal length of 55 mm and a speed of  . The correct exposure time for this speed under certain conditions is known to be .

(a) Determine the diameter of the lens.

(b) Calculate the correct exposure time if the f-number is changed to under the same lighting conditions.

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a. Find the angular width (that is, the angle from the bottom tothe top) of the central maximum in the diffraction pattern formedby this lens when illuminated with 550 nm light.

b. What is the linear width (diameter) of the central maximum atthe focal distance of the lens?

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