200mm f2.8 lens, Nikon extension tube, Nikon/Canon adapter all held together with gaffer's tape. It worked!
Looks cool , I believe that in being able to make or adapt miss matching gear, it gives a better understanding of the photographic process.
Lol...actually I had no idea what I was doing when I undertook this project. It turned out quite well considering what it looks like. It worked so well I went ahead and bought a set of extension tubes and been having fun ever since. The macro world is indeed an amazing realm. Thank you Craig.