For Canon EF 16-35mm 17-40mm 24-105mm 100mm F2.8 Lens Bayonet Metal Mount Ring
For Canon EF 100mm F2.8L IS USM. For Canon EF 16-35mm F2.8L USM. For Canon EF 16-35mm F2.8L II USM. For Canon EF 16-35mm F2.8L III USM. For Canon EF 16-35mm F4L IS USM. For Canon EF 24-105mm F4L IS USM.