If you need an adapter for your Fuji GFX to accommodate third party lenses it might be worth considering a tilt shift version. Yes, they are more expensive than a straight adapter but add significant versatility. Due to some health considerations I wasn’t able to do a proper test as I would’ve liked. So, these shots are handheld. The adapter is a Fotodiox Pro TLT ROKR - Tilt/Shift Lens Mount Adapter Compatible with Pentax 6x7 (P67, PK67) Mount since that is the lens I used. More specifically, the Pentax 6X7 55mm f4 lens.
v2 in different light
The first shot was taken from a balcony on the 5th floor of the front building shown in the image below. Maybe not the most necessary angle to take advantage of the TS adapter. The below shot shows a more obvious need for keeping lines straight. I’ll be looking for some more obvious applications in the next couple of months together with a tripod for twilight shots.