Variation occurs in a formula from photography. In the luminance, L, varies directly as the square of

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Variation occurs in a formula from photography. In 25F2 st

the luminance, L, varies directly as the square of the F-stop, F, and inversely as the product of the film ASA number, s, and the shutter speed, t. Variation occurs in a formula from photography. Inthe luminance, L,

(a) What would an appropriate F-stop be for 200 ASA film and a shutter speed of 1/250 sec when 500 footcandles of light is available?

(b) If 125 footcandles of light is available and an F-stop of 2 is used with 200 ASA film, what shutter speed should be used

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College Algebra

ISBN: 978-0134697024

12th edition

Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

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Question Posted: Feb 20, 2019 12:42 PM

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Variation occurs in a formula from photography. In the luminance, L, varies directly as the square of

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25F2 st

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a Here L 500 s 200 t 1250 Substitute these values into the fo...View the full answer

College Algebra

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