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２手动（ＭＦ）调焦机构２．２调焦机械的分类 调焦机构大致可以分为以下几种： ①镜头与镜头面板一起移动的方式； ②移动（固定镜片的）镜筒方式； ③移动胶片的方式。２．２．ｌ移动镜头面板的调焦方式 用于比较大型的照相机。对于皮腔式相机，在面板上装有小齿轮，在基板上
2 Manual (MF) focusing mechanism 2.2 Focusing machinery classification Focus mechanism can be divided into the following categories: ① lens and the lens panel to move together; ② move (fixed lens) tube mode; ③ move The way of the film. 2.2. l The moving lens panel’s focusing method is for larger cameras. For a pocket camera, a pinion is mounted on the panel on the substrate