The answer, as ever, is "it depends". If you are planning on projecting the image straight ahead, you should be fine. If you are aiming the projector downwards, you may have a problem. The CX1 is designed to aim upwards and can correct a "normal" keystone (image wider at top than bottom), but if you're shooting downwards so that the image is wider at the bottom than the top, you can't adjust it. Make sense? Thought not.