The MCEX-11 is a Macro Extension Tube for close-up photography. By attaching the ring between a FUJINON XF or XC lens and a camera body, users can enjoy high-magnification photography. When the Macro Extension Tube is attached, the focus range is limited so users can find a focus point by moving the camera forward and backward. The Macro Extension Tubes are equipped with electronic contacts, retaining normal AE, (Auto Exposure) functions and are designed to seamlessly blend into the original look and feel of the X-Series line of compact system cameras.