The Kenko DG Nahringee 12/20/36mm converts almost any lens into a macro lens at a fraction of the cost while maintaining its original optical quality. They are mounted between the camera body and the lens to create more distance between the lens and the film plane.

Moving the lens further away from the camera's film or CCD sensor forces the lens to focus much closer than normal. The longer the length of the food, the closer the lens can focus.