Kenko DG AF Extension Tubes Set (10mm, 16mm) - Micro Four Thirds MountThe Kenko Extension Tube Set for Micro Four Third lenses is a set of two extension tubes designed to work with the mirrorless interchangeable lens cameras and are exceptionally useful for macro photography. The extension tubes mount between the camera body and the lens to create more distance between the lens and sensor. By doing this the lens is forced to focus much closer than normal, the greater the length of the extension tube, the closer the lens