Hi, glad to be here and introduce some fujix adapters so you can use other lenses on fuji x body.
Nikon G to Fuji X
Pentax K to Fuji X
Canon FD to Fuji X
Minolta MD to Fuji X
Canon EOS to Fuji X
M4/2 to Fuji X
Olympus OM to Fuji X
Leica R to Fuji X
you can fine more K&F Concept Fuji X adapters here: https://www.kentfaith.com/fuji-lens-adapter
Also K&F just released GFX adapters on Japan market, it will be available for worldwide users soon.
http://www.fujirumors.com/k-f-concept-releases-8-adapters-fujifilm-gfx/