I love cut-away portions of any tech gadget and this video of a Sony A55 DSLR with a translucent mirror is definitely no exception. The translucent mirror is a phenomenal piece of technology that Sony has implemented into this camera with one huge beneficial factor — the camera can autofocus even when doing video. On traditional DSLR’s, when a camera is on video mode, the autofocus is rendered unusable because the mirror is flipped up and the autofocusing sensor is disabled. [via]