A sensor arrangement for a forage harvester. The sensor arrangement includes a frame, a CCD or CMOS camera mounted to the frame in a first position, and a time-of-flight camera mounted to the frame in a second position. The CCD or CMOS camera is mounted to the frame in the first position such that, when a filling wagon is located with respect to the forage harvester in a filling position, a first image of at least a portion of the filling wagon is capturable by the first camera. The time-of-flight camera is mounted to the frame in the second position such that, when the filling wagon is located with respect to the forage harvester in the filling position, a second image of a segment of the portion is capturable by the second camera.