These longer focal length pinhole lenses are the latest generation of pinhole TV lens technology. They provide high resolution and high fidelity images with very little distortion to picture quality. This lens can see an entire room through a hole less than 0.15 inch diameter. Designed to work with 1/3-Inch , 1/4-Inch and 1/5-Inch format CCD cameras. CS or 12mm Mount. As with all Marshall lenses, carries a full one-year warranty.