Set of German made bellows from Novoflex with interchangeable mounts. Extension from 38mm up to 120mm. Built in macro focus rail. Leica 39mm thread on front novoflex bayonet on rear. I have an adaptor for Nikon body and Pentax K lens listed. This set has the sensor slot for use with Multiblitz's contrast control unit for their slide duplicator. It's badges as elinchrom who I assume also made a similar copying system.