Sharing in case someone is not aware of the possibility.
Most of us know that you can shift and stitch a tilt & shift lens left and right to get a horizontal panorama, or up and down for vertical. Canon lenses can change the plane of shift in 30 degrees increment as well, producing the following result, which can be then sliced and diced to obtain a desired crop. Some of the missing corners can be reconstructed in Photoshop, using Content Aware Fill.
