V2EX autofocus

Autofocus

释义 Definition

(相机、手机等的)自动对焦:设备自动调整镜头,使拍摄对象变清晰。(也可用于比喻:把注意力“自动聚焦”到某事上。)

发音 Pronunciation (IPA)

/tfks/

例句 Examples

The camera’s autofocus is fast in low light.
这台相机的自动对焦在弱光下也很快。

As the speaker moved across the stage, the system continuously adjusted autofocus to keep her face sharp, even against a busy background.
当演讲者在舞台上走动时,系统持续调整自动对焦,以便即使在复杂背景下也能保持她的脸部清晰。

词源 Etymology

由 **auto-**(“自动的”)+ focus(“聚焦、焦点”)构成。最初多用于摄影与光学领域,随着数码相机与手机普及而成为常用词;后来也引申到注意力、目标管理等语境中。

相关词 Related Words

文学作品 Literary Works

  • 《Life of Pi》(扬马特尔):作品中出现与摄影/影像相关的描写时常用到 focus 一类词汇;autofocus 作为现代摄影术语在当代小说与散文中也常见。
  • 《The Circle》(戴夫艾格斯):涉及摄像设备与持续监控的语境中,常出现相机功能相关词汇(包括类似 autofocus 的技术术语)。
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