Dictionary.com
Thesaurus.com

back focus

American  

noun

Photography.
  1. the distance between the back surface of a lens and the focal plane when the lens is focused at infinity.


Etymology

Origin of back focus

First recorded in 1895–1900

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"It was a time where I really needed to step back, focus on being present," he said.

From BBC Feb. 18, 2022

I suggest you step back, focus on your own life and in future encourage your father to do likewise.

From The Guardian Dec. 23, 2018

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training