This is the 2.5" Arca-Swiss Type Plate. Please check the list of lenses below for compatibility.
Arcatech lens plates are very lightweight, precision machined, and are well-suited to nature photographers, landscape photography, large and medium format, digital and 35mm SLR cameras, and outdoor photography where weight and a perfect fit are priority.
Arcatech quick-release plates are compatible with any “Arca-Swiss” type quick-release system (like Arca-Swiss, Graff, Wimberley, Foba, etc.).