Re: [問題] 等效焦段的原理
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以上影片展示dolly zoom這種電影手法，是在變焦的同時移動攝影機讓主體的大小不變
因此可以很清楚的看到透視感變化的效果
原因是攝影機的位置改變了，而單純zoom in/out 卻不去改變位置的話，是看不到
這種透視變化的
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