全画幅数码相机上50mm的镜头,运用在APS尺寸上,镜头的等效焦距大约等于:()
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全画幅数码相机上50mm的镜头,运用在APS尺寸上,镜头的等效焦距大约等于:()
A.50mm
B.75mm
C.150mm
D.100mm
参考答案:
全画幅数码相机上50mm的镜头,运用在APS尺寸上,镜头的等效焦距大约等于:()
A.50mm
B.75mm
C.150mm
D.100mm
参考答案: