Features The extension tube is designed for Fujifilm mirrorless camera lens mounting at a higher magnification at a closer distance. The adapter consists of two loops of different lengths, and can be used alone or in combination.It allowsyou to use all the shooting modes of the camera and requires exposure compensation.The closer you zoom in on your subject (making it look larger in the viewfinder and picture).When using an extension tube (10 mm or 16 mm) or a combination(10 mm + 16 mm = 26 mm), the focal length of the lens should be greater than the tube length (10 mm 16 mm or 26 mm). Compatible with: Fujifilm APS-C Camera Such as X-T1 X-T2 X-T3 X-Pro1 X-Pro2 X-M1 X-A1 X-A2 X-A3 X-E1 X-E2 X-E3 X-T10 X-T20 X-T30 X-T100 X-100F