This amazing right angle (90 degree) pinhole lens is designed to be highly useful in covert applications where a large CCTV camera can not fit behind the wall or ceiling in a perpendicularly position. This lens can see an entire room through a hole less than 0.15 inch. These high tech lenses provide high resolution and high fidelity images with very little distortion to picture quality. Compatible with 1/3-Inch , 1/4-Inch and 1/5-Inch format CCD cameras. As with all Marshall lenses, carries a full one-year warranty.