Human eye - Wikipedia https://en.wikipedia.org/wiki/Human_eye#Dynamic_range
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> At the low end of the range is the absolute threshold of vision for a steady light across a wide field of view, about 10－6 cd/m2 (0.000001 candela per square meter).[20][21] The upper end of the range is given in terms of normal visual performance as 108 cd/m2 (100,000,000 or one hundred million candelas per square meter).[22]
とのことなので，14 EVあれば，人間の目と同等？
