Summary: Follow the guide below and you will know how to import Sony XDCAM EX MP4 to Final Cut Pro 7/X without rendering or any other problems on Mac OS X(Mountain Lion included).
Sony XDCAM EX camcorders like PMW-EX3, PMW-200, PMW-EX1, PMW 150, etc are great for us to take high quality full HD videos. If you have got one and often use it to record 1080p video, you may have the need to edit the generated XDCAM EX MP4 files in Final Cut Pro on Mac. While, it