Diagonal tilt - Ts-e lenses. Issue with panorama shift?

Martin Erik Andersen wrote:

The limitation I am struggling with only apply for panorama or vertorama photos made by multiple shots using shift.

In a single shot (with no intention for stitching to panorama) I have no problem getting any of 4 possible diagonal planes focused.

As far as I can see what is going on is this: The tilt rotation axis can rotate 90°, stetting the rotation around 45° and tilting down results in upper left diagonal focus plane. Tilting up results in lower right diagonal focus planes. Focus planes marked in red:

To get the two other diagonal planes in focus I have to rotate the shift axis 90°:

But the rotation of the shift axis 90° turns the shifting direction from horizontal to vertical. And this is of course not an option if the intention is to stitch photos to a final horizontal panorama.

Setting the tilt axis rotation less or more than 45°, as far as I can see, only refines the diagonal rotated plane within the total of the 90°. The 10° being closer to plain tilt, and 80° closer to plain swing.

The total image circle is 360° and using the tilt rotations axis of 90° in conjunction with “up/down” covers 180°. To cover the remaining 180° the shift axis has to be rotated 90° - this turning the shift direction from horizontal to vertical.

Hope this is a bit clearer, and sorry if my language and vocabulary is of - English is not my first language.

OK, I can see this limitation with the TS-E mount if you want the same shift direction (and why the internal cabling causes it)

My only solution would be to use a shift adapter to replace the standard EF->RF one I use - of course it needs electrical connections. No use of course on my native EF mount DSLRs

For my adapted (M645) lenses, with no electrical connections, it's not an issue, but then again I've no parallax cancelling mount for them, so it's a matter of manual camera shift to offset the shift of viewpoint.

Other expensive solutions spring to mind (involving adapters and medium format backs...

Fortunately (well, for me anyway   ), I have very little use for tilt when shooting stitched wide angle shots.

Maybe I'll try some experiments with my assorted adapted lens solution (35-210mm)!