Photog. a number that represents the relative aperture of a lens, equal to the focal length divided by the effective diameter of the lens aperture: a higher number indicates a smaller opening
f-number
f-num·berWebster's New World College Dictionary, Fifth Edition Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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"f-number." YourDictionary, n.d. Web. 15 January 2019. <https://www.yourdictionary.com/f-number>.
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f-number. (n.d.). Retrieved January 15th, 2019, from https://www.yourdictionary.com/f-number
f-number
noun
The ratio of the focal length of a lens or lens system to the effective diameter of its aperture. Also called f-stop .
Origin of f-number
f(ocal length) numberTHE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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MLA Style
"f-number." YourDictionary, n.d. Web. 15 January 2019. <https://www.yourdictionary.com/f-number>.
APA Style
f-number. (n.d.). Retrieved January 15th, 2019, from https://www.yourdictionary.com/f-number
English Wiktionary. Available under CC-BY-SA license.
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MLA Style
"f-number." YourDictionary, n.d. Web. 15 January 2019. <https://www.yourdictionary.com/f-number>.
APA Style
f-number. (n.d.). Retrieved January 15th, 2019, from https://www.yourdictionary.com/f-number
f-number - Computer Definition
See f-stop.
Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY All other reproduction is strictly prohibited without permission from the publisher. © 1981-2017 The Computer Language Company Inc. All rights reserved.
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MLA Style
"f-number." YourDictionary, n.d. Web. 15 January 2019. <https://www.yourdictionary.com/f-number>.
APA Style
f-number. (n.d.). Retrieved January 15th, 2019, from https://www.yourdictionary.com/f-number
