A better lens does not nrscesaeily improve image quality. The wide angle lens will help you videotape a larger area wthout having to get far away from the subject. How this affects video quality is that since it looks farther away then there will be less detail. What really affects the image quality is the image sensor the camera has and the media you are recording it on. A bigger image sensor or a 3CCD array will render a better picture. For the media your choice of DVD does not render good image quality after you record it.So buying a wide angle lens will only affect the image quality by showing less detail. Getting closer will have more detail but if you want to show a wider angle then that will be fine with you.