[問題] 為何感光元件不做成正方形的?
成像圈是圓形的,如果底片/感光元件做成方形的不是更能有效利用收進來的畫面嗎?
當然目前感光元件通常做成2:3長方形是因為底片的比例是這樣的
不過為何底片比例會變成2:3而不是1:1呢?
因為人眼看到的是偏長形的範圍嗎?
如果2:3比較符合人性,那為何instagram的正方形比例又那麼受到歡迎呢?
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