国内成人自拍视频-国内成人精品视频-国内不卡一二三四区-国内91视频-国模肉肉大尺度啪啪人体150p-国模青青

A professional camera is also called a single lens reflex camera, and a full camera is called a single lens reflex camera. The unique design of the reflectors and prisms of these cameras allows the photographer to view the image through the lens directly from the viewfinder. When light passes through the lens of the camera to the reflector, it refracts to the focus screen above and forms an image.