Metabones Canon FD Lens to FUJIFILM X-mount Camera T MB_FD-X-BT1
Vello Canon FD Lens to FUJIFILM X-Mount Camera Lens LA-FX-FD B&H
K&F Concept adapter Pro for Canon FD lens to Fujifilm Fuji X S10 XT100 XT4 Xpro3 | eBay
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FD-Fujifilm X Speed Booster Focal Reducer Adapter | Pixco - Provide Professional Photographic Equipment Accessories
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Canon FD SLR lens to Fujifilm X-Series (FX) Mount Camera Body Pro Mount Adapter – Fotodiox, Inc. USA
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