Extension tubes are designed to enable a lens to focus closer than its normal set minimum focusing distance. Getting closer has the effect of magnifying your subject (making it appear larger in the viewfinder and in your pictures). They are exceptionally useful for macro photography, enabling you to convert almost any lens into a macro lens at a fraction of the cost while maintaining its original optical quality.
Electronic connections automatically pass information between Fujinon X-Mount lenses and Fujifilm X-series camera bodies so you can still use autofocus and control the aperture while using the tube.
The mount ring is made of high-grade solid metal and are precisely manufactured to suit the XF lenses and the X-series interchangeable cameras perfectly.
