The Canon Lens Support is designed to support your Canon Cinema Prime EOS mount lenses on your rod based camera rig. This lens support combines a hook and foot mechanism with a quick release lightweight rod mount. The rod mount hook slides onto your 15mm lightweight rods. The foot screws on to the bottom of your lens. When the lens is rotated into the locked position the foot wedges into the hook providing firm, stable support with no extra steps. There are four Canon support feet included with this lens support.