Chauvet Pro Ovation Ellipsoidal HD Zoom Lens Tube (15-30°) is an adjustable lens tube for CHAUVET PROFESSIONAL E-Series Ovation fixtures and other ellipsoidal lights. It provides a 15-30° beam angle with dual aspheric lenses for focus and gobo projection. The lens tube has independent beam angle and focal point adjustment, an internal color-blending filter holder, and an IP20-rated housing. A gel frame and fixture yoke are included.