Re: [問題] SONY FE鏡 為何要出55MM而不是50MM
※ 引述《mquare (爹卡路恰)》之銘言:
: 以前看過 50MM 和 35MMM的差別
: 50MM 是 人類單眼的視角 35MM 是人類雙眼的視角
: 那為啥SONY E鏡 的FE 會出 55MM 1.8 而不是 50MM 1.8
: 雖然5M差不多 但是就是有疑問阿
: 還是55MM 有啥特殊的意義
55mm : 以畫質優先,鏡片組設計好後就剛好落在55mm的焦距上
50mm : case 1) 以焦段優先,鏡片組設計好後再稍為調整焦距
(是會影響畫質沒錯,愈是廣角畫質下降愈快),再以50mm上市
case 2) 直接在焦距上灌水說是50mm的鏡頭,像bigma...
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抱歉我在台大材料系學的
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http://www.fotobeginner.com/306/nikon-f-mount-50mm-comparison/
灌水多少自己看
但我沒有說比較差喔
我反而想表達這樣才是bigma畫質較好的原因
噓
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你理解錯了
是訂好最好的設計後,焦距才剛好在55mm
不是55mm是最好畫質的焦段
每個設計都有不一樣的最佳焦段,像nikon的就在58mm
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喔喔喔 哭哭阿 趕論文那一年有空窗期,都不知道有新版的鏡頭出來了@@
※ 編輯: vchenkoshe (1.171.166.141), 01/22/2015 02:10:26
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