equivalent focal length
noun
variants
or equivalent focus
: the focal length of a single thin lens that would best duplicate the images formed by a given thick lens, compound lens, or lens system
Dictionary Entries Near equivalent focal length
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“Equivalent focal length.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/equivalent%20focal%20length. Accessed 26 Nov. 2024.
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