LordFerret wrote: .....With older fully manual 35mm SLR's, you could remove the lens and reverse it (turn it around backward)... then holding it by hand up against the body of the camera, you'd have a functional macro lens. I'd resorted to such tactics many a time. You just need to take a close-in light reading first, and pre-set your aperature (always bracket shots).
I agree with LordFerret, and I can add that the best lenses for such a system are the wide-angle ones.
It's sufficiently easy to find in the web reversing rings, i.e. with male bayonet on one side and the right male screw on the other side.
Results are very good, expecially if you don't need (as 99,9% of photographers!) an expecially relevant optical sharpness, for very big enlargments.
Bye
Andrea