Canon Bellows FL, complete with Slide Duplicator for 55 diameter filter lenses like the FL 50mm f/3.5 or FD 50mm f/3.5 SSC. The Bellows FL has a semi-automatic aperture mechanism system so the aperture can be activated from the camera by cocking a arm on the front part of the bellows. The set is still in good shape with light wear, and comes with the distance scale for the bellows. A good option to be able to digitize your negatives with a adapter on a digital camera with a suitable adapter. Comes with boxes.