I finally got the last piece necessary to assemble a tripod head that will accommodate tilting as well as panning at the parallax point of the lens.
I had previously tested to determine the parallax point for the Batis 25mm lens. This morning I did a quick test to see how well it works when tilting the camera from having the sensor perpendicular to the ground.
Here are two versions. Both were made in M mode with 1/30, ISO 100, F8. I auto focused on the door with it in the center of the frame. Then changed to MF and fine tuned the focus at X12.5 focus magnification. It reminds me of focusing on the ground glass of a view camera with a loupe.
The first image is with the lower row of four images shot with the sensor perpendicular and the upper row with the camera tilted 15 degrees up.
The second image is with the lower row tilted down 5 degrees and the upper row is the same 4 images used in the first image set.
The merge was done in Lightroom. There are no adjustments in Lightroom other than the merging. The merge function was set to auto and selected spherical for the rendering. The verticals in the house are quite good. In the frames used for the merge they are noticeably tilted when the camera is off perpendicular as one would expect.
Result, in my view, is that the Batis 25 with this pano nodal point rig will work well in the field. Especially for landscapes.
The rig I assembled can easily break down to carry in a pouch or camera bag pocket. Its three rails and two panning clamps.
HERE is a full resolution image. Its 15.4 megabits and 11571x5382 pixels.
HERE is a full resolution image. Its 16.9 megabits and 11458x6128 pixels.