# stop down

> English word · Verb

## Definitions
1. To decrease the aperture of a photographic lens, moving from an f/stop represented by a lower number to an f/stop represented by a higher number.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/stop-down