Patrick Galbats

Hi, I have the 50R for nearly a month now. I also work with 4x5 Arca Swiss and Wista SP. Now I'd love to use the Fuji as a digital back. But maybe I will sell my 4x5 cameras and buy a Linhof Technikardan 23 (6x9) in place IF it exists an affordable system to do so. I couldn't find any adapters for this camera. Does somebody have a plan? 🙂 The other question I have is about the real focale length when using large format lenses on the Fuji GFX. What would be the focale length of a 4x5 150 mm on the fuji? Or a 75mm for the 6x9 using on the Fuji? I'm confused.... Thanks