Abstract: Device of the type including a system against which a side of meat suspended from the conveyor of a slaughterhouse line bears, capable of orientating the side of meat about its hanging point, a system for taking shots which is located on one side of the conveyor, a luminous or contrasting background situated facing the system for taking shots, on the other side of the conveyor, a system for processing the shots and a control system. The system against which each side of meat bears includes a vertical post, the axis of which passes through the axis of the hook of the conveyor, this post being driven in terms of rotation by a gear motor unit and associated with a mechanism for indexing its angular position, the post having, diametrically opposite each other, two series of bearing limit stops for a side of meat, each limit stop including a support fixed to the post used for mounting a horizontal bar forming the limit stop proper.