Thank you Tim. I'm using Photoshop to stitch the shots. I use Auto Align and then Auto Blend. The key thing in the field is to lock your vertical plane. My FLM ballhead has a dedicated tilt lock knob for this purpose. It prevents the camera from moving side to side as you pan up on a vertical plane. This is kind of a poor man's version of a tilt shift lens. There is a tiny bit of sharpness dropoff when stitching this way but the resulting image still looks great when zoomed in.
I'll have to try that. I have Tilt-Shift lenses, so I may experiment and do a comparison of the sharpness.
I wonder if my Husky tripod would work for vertical panos? It has tilt using an arm like a video head that doesn't effect panning and a center shaft that raises the camera platform vertically too.
I think the Husky would work just fine. The key is making sure it is level. While I have an RRS ballhead, I've found that my old cheap metal tripod with a pan-tilt video head works better with my tilt-shift lens when shooting pano's. My cheap tripod doesn't have a center shaft, but it might be interesting to experiment with moving the shaft on a vertical pano. I suppose one could consider moving the vertical tripod shaft up and down as a "poor man's nodal rail." 






