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单反相机的原理
更新时间： 2020-07-13 00:00:00  

成像原理。在系统中，反光镜和棱镜的独到设计使得摄影者可以从取景器中直接观察到通过镜头的影像。

此相机“单镜头”是指摄影曝光光路和取景光路共用一个镜头，不像旁轴相机或者双反相机那样取景光路有独立镜头。

“反光”是指相机内一块平面反光镜将两个光路分开：取景时反光镜落下，将镜头的光线反射到五棱镜，再到取景窗。拍摄时反光镜快速抬起，光线可以照射到胶片或感光元件“CMOS”或“CCD”上。

关键词： 单反 相机 原理

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