The ADJ EPL190 Lens Tube is a specialized optical accessory manufactured to modify the beam spread of the Encore Profile Pro Series LED ellipsoidal fixtures. It provides lighting designers with a tool to tailor the fixture's field angle for specific applications, effectively offering a middle-ground option between wide and very narrow beams. This accessory is crucial for achieving precise lighting goals in theatrical, television, and architectural settings where control over light distribution is necessary. By attaching this tube to the front of the compatible ellipsoidal, the user can achieve a defined, focusable beam that is optimized for medium-throw applications, enhancing the fixture's versatility within a lighting design.

The construction of the EPL190 emphasizes optical clarity and mechanical reliability. The tube is precision-machined to ensure perfect alignment with the fixture's existing optical path, preventing any degradation of the image quality or introduction of color fringing. A secure, quick-lock mounting mechanism allows for tool-free attachment and removal, facilitating rapid changes during focus calls or when re-purposing the fixture for a different scene. The durable exterior housing protects the multi-element lens assembly inside from dust, moisture, and physical damage, ensuring consistent performance over the accessory's lifespan even in demanding production environments.

Applying the 19-degree lens tube transforms the fixture into an ideal choice for key lighting performers from medium distances or for highlighting specific architectural details with a controlled, sharp beam. It allows for a greater intensity of light to be concentrated on a smaller area compared to the fixture's wider default settings, making it more effective for creating dramatic focus and contrast. This accessory, like others in the EPL series, empowers lighting professionals to maximize the utility of their Encore Profile Pro fixtures, enabling a single light model to fulfill multiple roles—from a broad wash to a tight special—simply by changing a front-mounted component.