focal-plane shutter

[ foh-kuh l pleyn ]
/ ˈfoʊ kəl ˌpleɪn /

noun Photography.

a camera shutter situated directly in front of the film.

Origin of focal-plane shutter

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019