[問題]24-70和17-40的廣角端（APS-C)
我目前使用的是7D+24-70 2.8 II
最近想要補一顆廣角鏡
礙於預算，目前選定17-40這顆
比較想瞭解的是
17和24廣角端在APS-C系統上
換算大概分別是25和36
這個相差10mm的焦段會差很多嗎？
或者我應該多加點預算選擇更廣角的焦段
會選EF的鏡頭主要是考量之後勢必會換全片幅
希望大家可以給我一點意見或指導
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02/24 17:37, , 1F
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02/24 17:37, , 2F
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02/24 17:39, , 3F
02/24 17:39, 3F
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02/24 17:40, , 4F
02/24 17:40, 4F
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02/24 17:42, , 5F
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02/24 19:07, , 12F
02/24 19:07, 12F
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02/24 19:18, , 13F
02/24 19:18, 13F
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02/24 19:24, , 14F
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02/24 19:46, , 15F
02/24 19:46, 15F
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02/24 19:51, , 16F
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02/24 19:51, , 17F
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02/24 22:43, , 18F
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02/24 22:43, 19F
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02/24 22:46, , 20F
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02/29 03:05, , 24F
02/29 03:05, 24F
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