FotodioX Canon FD Lens to Fujifilm X-Mount FD-FXRF-NDTHRTL-PRO
The Speed Booster with the FD lenses upgraded my Fujifilm camera to a near full-frame system: Fujifilm X System / SLR Talk Forum: Digital Photography Review
Urth Canon FD to Fujifilm X Lens Mount Adapter | Urth US