“摄影镜头焦距系数”的概念、定义、翻译、参考文献-科学参考

单词	摄影镜头焦距系数
释义	摄影镜头焦距系数 Encyclopedia 艺术学镜头参数释 focal length factor of photographic lens摄影镜头焦距系数当机位确定后，欲获得相同的拍摄范围（景别），非全画幅数字照相机所用摄影镜头的实际焦距值，折算成全画幅摄影镜头的等效焦距值时的折算倍率。又称焦距换算系数、焦距折算系数。
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