Eggsnow Autofocus Macro Extension Tube Set for Fujifilm FX X-E1 X-E2 X-Pro1 X-A1 X-M1 SLR DSLR (2 Rings:10mm, 16mm, Usable in Any Combination)- Black

Includes 10mm (53g) / 16mm (53g) 2 extension tubes: Used individually or in any combination to obtain the desired magnification.
With cameras of TTL,AE(Through-the-lens, Automatic Exposure) type it gives perfect coupling except when combined with electronic flash AE unit.
DG-FU extension tube for fujifilm X mount lens is an accessory designed for use Fujifilm Micro lenses to shoot at closer distance with higher magnification.
Material: ABS + aluminum alloy. Compatible Camera Models: Fujifilm FX X-E1 X-E2 X-Pro1 X-A1 X-M1 etc

When using the extension tubes alone(10mm or 16mm) or combination(10mm+16mm=26mm), the focal length of lens should be greater than the length(10mm 16mm or 26mm) of the TUBE/TUBES used. Suitable lenses are from standard to telephoto as well as macro(micro) lenses. Wide-angel zoom lenses are also usable,but depending on how the lens is combined with the TUBE the distance between lens front and subject may become extremely close.