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extension tube

American  

noun

Photography.

  1. any of a series of tubes of varying lengths placed between the lens and a camera body to facilitate closeup focusing.

Etymology

Origin of extension tube

First recorded in 1955–60

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.