Captured with the Rodenstock 138mm/6.5 HR Digaron-SW lens (@ f/8), Phase One IQ4-150 back (@ ISO 50, 1/30 sec), vertically shifted 15mm.
The Rodenstock 138mm/6.5 has a floating internal element that has to move as it's focused. It has to be focused with a helical ring (like an SLR lens) that moves the focus and the internal element together, rather than simply by moving it back and forth with a bellows. This makes the lens big, heavy, and cumbersome (not to mention spendy), but it's very sharp.