C Mount Adapters circles only. The other items shown in the photo are not included. 5.0 mm adapter rings attach between the lens and camera to convert CMount lenses for use on the camera. If your camera has a C mount and you have a Cmount lens, these adapters sit between the lens and the camera to enable use. C mount lens adapters circles Key benefits Expand compatibility: Enables using Cmount lenses with your camera setup by placing an adapter between lens and body. Simple interface: Quick betweenlenstocamera fit to facilitate lens changes without tools. Compact circular design: Circular adapter rings designed to sit between lens and camera, minimizing extra bulk. Who this is for Photographers and videographers who want to reuse existing Cmount lenses on cameras configured for Cmount interfaces. Remote or field shooters who need a lightweight way to test Cmount lenses with their camera. Studio shooters who want flexibility to swap Cmount glass quickly. Use scenarios Scenario 1: You have a legacy Cmount lens and a camera with a compatible Cmount interface; install the adapter between lens and camera to use the lens without mounts. Scenario 2: You are evaluating whether a Cmount lens works with your camera in a studio or field environment by mounting it quickly with the adapter. Scenario 3: You are assembling a compact kit to cover multiple lens options and want to keep adapters lightweight and circular for easy handling. Notes This listing includes the Cmount adapters circles only; other items shown in the image are not included.