An ETC Source Four Lens Tube – 14º is a narrow‑beam lens designed for long‑throw lighting where strong focus and precise control are needed. The 14º beam angle provides a tight but slightly more flexible spread than a 10º lens, making it useful for highlighting performers, scenery, or architectural elements from front‑of‑house positions or elevated lighting locations. This lens tube produces a bright, concentrated beam with clean edges and sharp shutter cuts, helping limit spill light in controlled designs. It installs directly into compatible Source Four ellipsoidal fixtures and is commonly used in theaters, concert venues, and performance spaces where accuracy and reach are more important than wide coverage.