Macro Lens Extension Tube Auto Ring Adapter Mount Extender Replacement Accessory for EF EF-S Camera

Compatible for Canon EF and for EF-S all lens cameras. Auto focus macro extension tube set can convert your lens into macro lens, which is easy to take subtle photos. It removes the lens from the film or digital sensor. The closer the focus is, the greater the magnification. These extenders adopt all circuit and mechanical coupling design to maintain autofocus and TTL automatic exposure. There are three different tubes: 13mm, 21mm and 31mm. Seven different amplification effects can meet different needs.