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rachelzhang:视场角是像面尺寸/焦距 j%D{z5,nKm 你这里只给出了像素数,根据倒推,像素大小应该是8.5um )_n(u3' 8.5*8100/1000/1932=2.05 (2006-09-07 16:19) e igVT4