V2EX exposure time

Exposure Time

定义 Definition

Exposure time(曝光时间):在摄影、摄像或光学成像中,指感光元件(胶片/传感器)接收光线的持续时间,通常由快门速度决定;曝光时间越长,进光量越多(也更容易产生运动模糊)。

发音 Pronunciation (IPA)

/kspor tam/

例句 Examples

The exposure time is 1/60 of a second.
曝光时间是六十分之一秒。

In low light, increasing the exposure time can brighten the image, but it may also introduce motion blur and noise.
在弱光环境下,延长曝光时间可以让画面更亮,但也可能带来运动模糊和噪点。

词源 Etymology

exposure 来自动词 expose(使暴露、使接触),加名词后缀 -ure,表示“暴露/曝光的状态或结果”;与 time(时间)组合后,字面义为“曝光所持续的时间”,在摄影语境中特指“相机让光进入并作用于感光介质的时长”。

相关词 Related Words

文学与经典作品 Literary Works

  • The Negative Ansel Adams(暗房与曝光控制中频繁讨论曝光时间/快门时间)
  • The Camera Ansel Adams(摄影基础概念中涉及曝光时间与曝光三要素)
  • Langford’s Basic Photography Michael Langford(摄影教材中系统讲解曝光时间与曝光)
  • The American Cinematographer Manual(影视摄影手册中涉及快门与曝光时间的技术用法)
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