An apparatus for handling piece goods that are being moved in at least two parallel rows, the apparatus comprising - at least one manipulator for piece goods, - at least two transport devices by way of which the moved piece goods are transportable in a transport direction to a seizing range of the at least one manipulator, and also comprising - at least one movable optical detection device assigned to the seizing range and/or to a movement space of the at least one manipulator, which at least one movable optical detection device is prepared and equipped for the acquisition of space coordinates and/or position data and/or contour data of at least one piece good of the at least two transport devices, the at least one piece good being moved in transport direction, - wherein at least the manipulator and/or further conveyor components of the apparatus is/are calibratable and/or controllable based on the space coordinates and/or position data and/or contour data, - wherein the at least one optical detection device is designed to be at least temporarily movable parallel to a horizontal conveying device assigned to the seizing range, - wherein one optical detection device is provided for each transport device, - wherein at least two optical detection devices are arranged so as to be movable parallel to the transport direction in or against the transport direction in the area of a longitudinal side of the horizontal conveyor device, characterised in that - the at least two optical detection devices are arranged at different heights above a conveyor surface or conveying level for the piece goods formed by the horizontal conveying device, - wherein the at least two optical detection devices comprise a common drive and a common movement range in the area of a longitudinal side of the horizontal conveyor device. - at least one manipulator for piece goods, - at least two transport devices by way of which the moved piece goods are transportable in a transport direction to a seizing range of the at least one manipulator, and also comprising - at least one movable optical detection device assigned to the seizing range and/or to a movement space of the at least one manipulator, which at least one movable optical detection device is prepared and equipped for the acquisition of space coordinates and/or position data and/or contour data of at least one piece good of the at least two transport devices, the at least one piece good being moved in transport direction, - wherein at least the manipulator and/or further conveyor components of the apparatus is/are calibratable and/or controllable based on the space coordinates and/or position data and/or contour data, - wherein the at least one optical detection device is designed to be at least temporarily movable parallel to a horizontal conveying device assigned to the seizing range, - wherein one optical detection device is provided for each transport device, - wherein at least two optical detection devices are arranged so as to be movable parallel to the transport direction in or against the transport direction in the area of a longitudinal side of the horizontal conveyor device, characterised in that - the at least two optical detection devices are arranged at different heights above a conveyor surface or conveying level for the piece goods formed by the horizontal conveying device, - wherein the at least two optical detection devices comprise a common drive and a common movement range in the area of a longitudinal side of the horizontal conveyor device.