SunwayFoto PCL-5DsR L-Bracket for Canon 5Ds and 5DsR DSLR Cameras PCL-5DsR L plate for Canon 5Ds & 5DsR Cameras Also fits 5DII 5DIII Arca- Swiss & RRS Lever clamp compatible Precision CNC machined from solid aircraft-grade aluminum. SUNWAYFOTO brand Arca-Swiss compatible Upper Width: 52.1mm