| 单词 | standard lens |
| 释义 | > as lemmasstandard lens standard lens n. Photography a camera lens with a focal length approximately equal to the diagonal of the negative, giving a field of view similar to that of the naked eye.The diagonal is taken as 50 mm for a 35 mm camera. ΚΠ 1917 Amateur Photographer & Photogr. News 28 May (Suppl.) 1/1 Fig. 4 was taken with what we have called the ‘standard lens’, i.e. the six-inch lens on a 5 by 4 plate. 1947 Pop. Photogr. June 117/2 While the angle of critical human vision is about 5 to 7°, the angle of conscious vision is about 25°. This approximates the angle covered by standard lenses with which cameras are normally equipped. 2005 H. Drew Fund. Photogr. 89 The 50mm standard lens translates into a 75mm on most digital SLRs, which means it is even better for portraits. < as lemmas |
| 随便看 |
|
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。