flash factor

noun

Definition of flash factor

: a number characteristic of a given photoflash lamp and a given film speed that when divided by the distance in feet between the lamp and the subject indicates the correct f-number for that distance

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Cite this Entry

“Flash factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flash%20factor. Accessed 24 Sep. 2020.

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