The SW612 Professional provides 2-way shift movements, but does'nt have a tilt/swing facility - why? This is because the variable depth of field control of tilt is not crucial in ultra-wide-angle photography, since the depth of field is so generous with such wide-angle lenses. In addition, having a tilt/swing possibility in ultra-wide-angle photography imposes a danger of losing the established perfect right angle of the optical axis and film plane, which is very important for convenient wide-angle photography.