focus ring(名词,常用作短语)
/ˈfoʊkəs rɪŋ/
Turn the focus ring until the subject looks sharp.
把对焦环转到主体看起来清晰为止。
With the lens in manual mode, she adjusted the focus ring carefully to keep the actor’s eyes crisp while the background stayed soft.
镜头切到手动模式后,她小心调节对焦环,让演员的眼睛保持锐利清晰,同时让背景仍然柔和虚化。
focus 源自拉丁语 focus(“炉灶、火点”),后来在光学语境中引申为“光线汇聚的焦点”,再进一步发展出“注意力集中、聚焦”等含义。ring 源自古英语 hring(“环、圈”)。两者组合成 focus ring,字面即“用于聚焦的环”,在摄影器材上指镜头的对焦环;在界面设计中则借用“环/轮廓”的视觉意象,指示当前焦点位置。