Schnellwechselplatte Objektiv Fuss Fuß f Canon EF 100-400mm f/4.5-5.6L IS II USM
It features Arca-compatible dovetail which allow you attach your lens to Ball Head, Clamp or Panorama Head of Arca-Swiss standard. Canon EF 100-400mm f/4.5-5.6L IS II USM. Two safety stop screws in both side to prevent drop by accident.