Dustbak, since we tried out with his h4d, he know it works!;-)
Marc thank you for the samples! I was playing today to much with this TF problem. I posted some new pics on the Hasselblad Digital Forum. What do you think about the theory from Morgan on the Hasselblad Forum (Marc, because you said it would be better from the tripod...). I must say my pics are made from about 80cm (2.5"). In longer distances the problem would go... lg, rem
Nodal point.
My tripod rig includes a RRS sliding rail to properly place the lens' Nodal point directly over the center axis of the tripod, so when I pan side to side or tilt up and down, the actual focal distance to the sensor doesn't move forward or backward.
True Focus-Absolute Position Lock doesn't adjust for forward or backward movement ... no AFs system does. Care in shooting technique is essential with any AF system ... especially considering the depth of field being less with a MFD fast lens relative to 35mm. TF is no different.
TF actually is more apparent when shooting closer subjects off-center because any lens exhibits less and less depth-of-field at any f-stop relative to shooting more at a distance. Unfortunately, shooting closer also increases the need to minimize body sway.
With TF one must pay specific attention to minimizing body sway while repositioning the frame composition. One thing that helps is to recognize that once TF locks you do not have to keep pressing the rear button. Then learn the shooting technique of recomposing by using your right hand (camera grip) wrist as a rigid pivot point and your left lens hand to do the moving ... all without moving your arms, or allowing body sway by using a good stance.
I've become pretty good at this steady stance business because I routinely use a M9 with a 0.95 Noctilux wide open and up-close ... and just about any amount of body sway what-so-ever = out-of-focus
-Marc
For what TF/APL
does do ... have a read: