I checked the "Equipment - macro lenses" category but saw no questions relevant to this topic. I understand that it is possible to stack two lenses, front end to front end via a male-to-male step ring. As I recall if the prime lens (the one mounted to the body) is a high quality zoom like the 80-200mm f/2.8D AF-Nikkor or similar lenses from Canon it is then possible to use other, shorter lenses as high quality close up lenses, I believe the range was from 85mm>20mm (?). Does anybody have any experience with this technique and would you be willing to shar some guidelines and tips? I am trying to go beyond .65x magnification and closer to 1:1.