woot! a fresh start!
Any camera capable of adjusting exposure time independent of ISO and Aperture (i.e. "full manual") is capable of bracketing. You don't necessarily need auto bracketing to do HDR. I am sure that the X-Pro 1 does auto bracketing, but in my opinion this +3,0,-3 route is not the best option, and may be the source of noise and other artifacts in HDRs. I think it makes more sense to spot meter the shadows and hilights and compare the amount of exposure between them rather than hoping that ±3 covers the entire dynamic range of the scene.
To me this popular technique is sloppy and is not scene-based, but rather an arbitrary one-size-fits-all approach to HDR.