檢視双反的原始碼

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|<center>'''双反'''<br><img
src=" https://tse2-mm.cn.bing.net/th/id/OIP-C.S1s28pQM1Pl5IsYWI-BczAHaE8?pid=ImgDet&rs=1" width="280"></center><small>  圖片來自优酷</small> 
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双反相机（TLR, Twin-Lens Reflex），全称为双镜头反光镜取景照相机，与[[单反相机]]（SLR, Single Lens Reflex）同属反光取景式相机。