I've seen two different types of Gitzo top plates. The one I posted the link to is for use without a center column. The previous picture showed the grub screw for preventing the head from rotating. The picture below shows the large circle (with groove) the crown of the tripod legs clamps to.
Looking at the B&H website the "answered questions" say to remove the center column assembly and replace it with this "correct flat plate".
Decades ago I took pictures in Yosemite Valley with a 35mm film camera. I wasn't happy with the results of the camera tilted up so I promptly bought a tilt/shift lens for the camera. Of course with LF you can return the film back to being parallel to the vertical scene even when the camera is tilted.
Bookmarks