Machine and method for producing filter rods for the tobacco processing industry

A machine for making filter rods (11) for the tobacco processing industry from a string-shaped base material (12), comprising an introducer (21) for introducing at least one longitudinally continuous member (22) in the base material (12), characterized in that machine includes an imaging measurement device (19) for the end face inspection of the filter rods (11) and an image evaluation device (30) for determining the position of the continuous member (22) in the filter rods (11) of the of the measuring device (19) captured images, wherein the insertion device (21) by means of the output from the image evaluation signal is automatically adjustable in position.