It is installed between the lens and the fuselage, lengthening the lens barrel, and using the principle of skin cavity photography to achieve the effect of super macro.1, 2, and 3 close-up circles can be used alone or in combination. The longer the barrel length, the greater the magnification effect. Requires full manual operationIt can be used in any combination or individually to obtain the exact magnification you need to capture the perfect macro shot.The longer the tube length, the closer the lens can focus.Model Number: Auto Focus Macro Extension TubeCompatible Brand: for X-pro1 E1Focus Type: Auto FocusLens Adapters Type: Extension Tubescolor:BlackMaterial:MetalPackage Contents:1 x Extension Tube Ring Adapter SetOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.