Pentacon M42 - Pentax K 转接环优化版

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-该M42-PK转接环针对Pentacon镜头进行了优化设计，可以实现无穷远合焦。 -在PK卡口位置增加了止动销，可以防止意外脱落。 -使用了较大的公差等级，允许使用较低精度的打印机制作。 -使用过程中出现的问题欢迎留言反馈。 English version -The M42-PK adapter ring is optimized for Pentacon lenses, allowing infinity focus. -The addition of a stop pin at the PK bayonet position prevents accidental dislodgement. -A larger tolerance grade is used, allowing for production with lower precision printers. -Welcome to leave feedback on problems that occur during use. 安装说明 1.检查转接环能否顺利安装到M42螺纹上。 2.将转接环从镜头上拆下，安装到相机的PK接口上。 3.在缝隙中插入止动销。 4.安装镜头。 Installation instruction 1. Check if the adapter ring can be installed smoothly on the M42 thread. 2. Remove the adapter ring from the lens and install it on the PK connector of the camera. 3. Insert the stop pin in the slit. 4. Install the lens.