The excellent optical system of EF400mm F2.8L IS III USM, which balance high image quality and weight reduction, is inherited to the RF mount.By using an RF mount lens that does not go through the mount adapter, the sense of unity between the camera and the lens has been improved.The image quality and size are equivalent to the EF model with a reputation, and assist in overwhelming high -quality shooting with light mobility.It adopts two fluorites and one super UD lens, and realizes a clear and sharp high -image quality without colored color as a flagship ultra -telephoto lens used by professional / highma.- asbestos non -containing ROHS Directive J-Moss Environmental Self -assertion mark Other environments and safety standards Radio Law Reference Telecommunications Business Law Radio Law non -target Telecommunications Business Law non -target Legal Related Confirmation Date Electrical Appliance Safety Law (body) non -target Electrical Appliance Safety Law (accessories, etc.) non -target Electrical Appliance Safety Law (Remarks)