Excuse me very much. Wanted to find some shift adapter for Nikon F-mount to F-mount. Some sort of experiment. Wanted to have got some additional shift move for the 19mm Nikon t/s lens, when shiftet in one direction already, the full lenght, up or down, or left or right, plus to add a extra shift option to the other directions. Probably a totaly "breaindamaged" idea? I know, it would be possible to shift diagonaly, and propably when shifted the full area in one of the given directions, and also adding another shift option, the light will start to collide inside the lens. Of course. Did anyone here already played with this idea? thanks- bye bye, richard