I like photographing with my Tilt/Shift lenses. Besides using them for single image photos, I’ll often use them to make stitched images. I keep the tilt and shift functions in different axis, so that I can tilt to reposition the plane of focus, and still be able to shift left and right. If my camera is mounted in a horizontal position, the resulting image when stitched in Photoshop is in a panoramic format. But if I mount the camera vertically, and then shift left and right, the final image is just slightly squarer than 4 x 5 proportions. Why do this? Easy answer: file size. With my D800E, the final 16-bit file is roughly 400 MB.