XF w/IQ3 Focus stacking WITH extension tubes....?

[Alan5]

Hi,
I'm considering using the XF with IQ3 back and 120mm (Blue Ring) Schneider LS 2.8 lens for some macro work but in my testing with the Mamiya 645AF Auto Extension tubes (NA403), I can't get the auto focus stacking to work. It does work without the extension tubes. Is there a work around for this, or any other tube that works to enable auto focus stacking..?
Thanks,
Alan.

[Jon]

The issue is that the Extension tubes prevent the autofocus system from driving the lens movements. therefore it is not possible to use the feature with extension tubes in place. You could consider an external stacking rig which leaves the lens fixed and moves the camera itself.