| 单词 | focus ring |
| 释义 | > as lemmasfocus ring focus ring n. a circular control on an optical instrument which is rotated to focus the instrument; = focusing ring n. at focusing n. Compounds 2. ΚΠ 1898 T. B. Jebb Canad. Patent 59,245 6 In an optometer,..the combination with the major and minor cylinders and lenses arranged as specified, of the focus ring, the slot at the bottom of the cylinder, [etc.]. 1989 K. Brookes Compl. Video Course 25 Macro focussing is generally done not by the normal focus ring but by the zoom lever. 2014 Hoosier Times (Bloomington, Indiana) 12 Jan. (Herald-Times ed.) f3/3 It helps to use lenses that..allow you to grab the focus ring and make adjustments even when auto-focus is on. < as lemmas |
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