所以你应该用的是CPL。CPL的物理形状当然是可以方形的。
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明白你的意思了,所以你不用担心, 市面上的恐怕已经没有线性偏振的滤镜了
-吴聚-
♂
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12/06/2012 postreply
09:39:03
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