time exposure

American  

noun

Photography.

1. a long exposure in which the shutter is opened and closed by hand or by a mechanism other than the automatic mechanism of the shutter.

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time exposure British  

noun

1. an exposure of a photographic film for a relatively long period, usually a few seconds

2. a photograph produced by such an exposure

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Other Word Forms

• time-exposure
  adjective

Etymology

Origin of time exposure

First recorded in 1890–95

Example Sentences

Under light exposure, these compounds typically undergo unwanted side reactions that interfere with the desired process.

From Science Daily • May 20, 2026

We put in the skylights this year because we were trying to protect the plants from light exposure and the rising heatwaves.

From Los Angeles Times • Apr. 13, 2026

Its presence suggests that light exposure increases the production of this compound, which in turn strengthens the structural bonds within the plant.

From Science Daily • Apr. 13, 2026

At the same time, he remained "very aware of the care that is required to maintain these delicate works", which can easily be damaged by light exposure.

From Barron's • Feb. 4, 2026

Last and most stable of all is the gradually built-up configuration due to long-continued light exposure.

From The Birth-Time of the World and Other Scientific Essays by Joly, John