Does anyone have experience trying to do tethered capture with this combination, using Live View and the Focus Meter tool? Phase One tech support tells me it can't work because the Focus Meter uses contrast detection for AF. Does this mean the Fuji camera doesn't? I have to assume that the Phase One tech support people know what they are talking about, but I thought it prudent to also learn of others' experience trying to precisely focus a Fuji GFX50S using the camera as a digital back on a bellows and focusing with the help of whatever live view focusing is possible and reliable.