Designed for the Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR and XF 50-140mm f/2.8 R LM OIS WR lenses, the MLP-75XF Metal Lens Quick Release Plate is an Arca-type compatible plate for mounting one of these telephoto lenses to a tripod head. The plate integrates a 1/4"-20 stud and has rubberized, non-slip padding on top for greater mounting friction.