V2EX light-trail

Light-Trail

Definition / 释义

light-trail(也常写作 light trail / light trails):指在长时间曝光(long exposure)照片或视频中,移动的光源(如车灯、手电、霓虹)在画面里形成的光轨/光带

Pronunciation / 发音

/lat trel/

Examples / 例句

I took a photo of the city with light-trails from the cars.
我拍了一张城市照片,车灯留下了光轨。

Using a tripod and a long shutter speed, she captured a light-trail that curved through the fog, turning the street into a ribbon of color.
她用三脚架和较慢的快门速度,拍到一条在雾中弯曲的光轨,把街道变成了一条彩色的缎带。

Etymology / 词源

light(光)+ trail(痕迹/尾迹) 组合而成的复合词,字面意思是“光留下的痕迹”。在摄影语境中,它特指因光源移动 + 长曝光记录而产生的线状或带状亮纹。

Related Words / 相关词

Literary Works / 文学作品与出版物

  • Night Photography and Light Painting(Lance Keimig):在讲解夜景与长曝光技法时常谈到 light trails(光轨)。
  • Light Science & Magic: An Introduction to Photographic Lighting(Fil Hunter, Steven Biver, Paul Fuqua):在摄影光线与曝光相关章节中会涉及类似“光迹/光轨”的表达与原理说明。
  • 多部摄影教程与夜景摄影作品集中也常用该词描述车流、烟花、城市霓虹等长曝光画面效果。
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