[情報] 各焦段的視角...
剛無聊找了一下 提供給大家看看 :Q 以135FF片幅為主
視角= 2 * atan (d / 2f) 其中:atan 為tan 的反函數; d 為片幅的對角線長度, f
為焦距
焦長(mm) 視角(度)
12.00 121.9657188 60.00 39.65405731
14.00 114.1821314 70.00 34.34724073
15.00 110.5270374 77.00 31.38563313
18.00 100.4756817 80.00 30.26361357
20.00 94.49321352 85.00 28.55832225
21.00 91.70210518 90.00 27.03156212
25.00 81.74138908 100.00 24.41373028
28.00 75.38064962 135.00 18.20811949
30.00 71.59151983 180.00 13.70644967
31.00 69.81841782 200.00 12.3469684
35.00 63.4399666 300.00 8.24903628
40.00 56.81194376 400.00 6.191454161
43.00 53.41395316 500.00 4.954898587
45.00 51.35092643
50.00 46.79300334
55.00 42.94269031
58.00 40.90982996
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01/17 20:43, , 1F
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01/17 20:46, , 2F
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01/17 20:48, , 3F
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01/17 20:48, , 4F
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01/17 20:53, , 6F
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01/17 20:55, , 7F
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01/17 20:59, , 8F
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01/17 21:07, , 9F
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01/17 21:33, , 10F
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01/17 21:51, , 11F
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01/17 21:51, , 12F
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01/17 23:37, , 13F
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01/17 23:49, , 14F
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01/18 00:22, , 15F
01/18 00:22, 15F
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