iconometer

noun
ico·​nom·​e·​ter | \ ˌīkəˈnämətə(r) \

Definition of iconometer

1 : an instrument for determining the distance of an object of known size or the size of an object at known distance by measuring the image of it produced by a lens of known focal length
2a : an instrument that determines the proper objective to be used in taking a picture of given size from a given standpoint and that consists of a diopter and an open rectangular frame sliding on a graduated rod
b : a direct viewfinder having a metal frame

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History and Etymology for iconometer

International Scientific Vocabulary icon- + -meter

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Cite this Entry

“Iconometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/iconometer. Accessed 26 Feb. 2021.

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