I remember speaking to ALPA at a photo show, from what I recall the cameras also have very fine metal shims to align the camera to a digital back. Do they manu

I remember speaking to ALPA at a photo show, from what I recall the cameras also have very fine metal shims to align the camera to a digital back. Do they manufacture the optics themselves too? Not sure I realised that. Edit: just found this "ALPA cooperates with the acknowledged best manufacturers of large format lenses"