我做过一只曝光箱。打开红灯，把顶盖按下时就转为白灯，数好时间，一张照片就出来了。

来源: chufang 于 2024-03-27 19:13:53 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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