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本文主要介绍了焦距变化范围为100~500mm长焦距望远物镜的两化一优——外型尺寸小型化,结构形式简单化以及成象质量优良的设计特点。
In this paper, the two focal lengths of 100-500mm focal length telephoto objective lens of the two of a Youyou - miniaturization of external dimensions, structural simplification and excellent image quality design features.