anyway dedicated macro lens let u get a 1:1 or perhaps 1:2 image size reproduction...close up filters dun do this for u, they only blow up the image size and decrease the working distance if i am not mistaken....
Buy better petrol doesn't equal to bigger engine capacity. :bsmilie:
Optical preforment is not the same also. Marco lens are design for you to go closer and get good result, where a close up filter just an add on to a lens that not design for marco work to do marco.