An apparatus for handling layers of palletized goods is disclosed including a lift head with a substantially horizontal suction face sized for a pallet including downwardly open suction chambers, which via individual valves are connected to a vacuum source, incorporated in the lift head or provided externally. The micro computer 17 provides a rotational angle compensating section 40 compensating an input rotational angle \u03b8 to correct a phase offset between a phase current command value Ix* as a current command value and an actual phase current value Ix as an actual current value in the current control. A spherical optical transform and a defect preservation transform preserve any defect levels on objects and compensate for the non-lambertian gradient reflectants on spherical objects at their curvatures and dimensions. The surface coil assembly receives an imaging field.