By simply inserting it between the camera body and the lens, Kenko extension tubes transform a standard lens into a macro lens, allowing you to get closer to the subject than the lens's minimum focusing distance permits. The Kenko Extension Tube Set for Canon RF-Mount, consisting of two rings measuring 10 mm and 16 mm, is compatible with the Canon EOS E and EOS RP (RF-Mount) systems and can be used individually or in combination.