应该是镜头的焦距变长了比如50MM变成了80MM，但是镜头对焦的距离不一定有变化

来源: viva 于 2023-04-01 17:44:11 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.