The Light Source M140 Cyc Track is a specialized, continuous-run aluminum tracking system designed for the seamless hanging and adjustment of lighting fixtures used to illuminate cycloramas, scrims, and large backdrops. This specific model is supplied in a substantial 240-inch (20-foot) mill length, providing a ready-to-install linear track that can be cut to specific on-site requirements or installed in full for covering expansive stage widths. The track profile is engineered with a low silhouette and a smooth internal channel that accommodates specially designed trolleys or carriers. These trolleys attach to the yoke or clamp of a lighting fixture, allowing it to be effortlessly slid to any position along the track's entire length, facilitating precise lateral positioning and easy re-focusing without the need for ladders or re-rigging.

Constructed from extruded aluminum, the track is both lightweight and structurally rigid, capable of supporting multiple heavy fixtures such as cyclorama strip lights or broad wash fixtures. Its design minimizes visual intrusion from the audience perspective, which is crucial for maintaining the illusion of an infinite sky or seamless background created by the cyc. The track system includes all necessary mounting hardware for secure attachment to overhead battens, grid pipes, or structural supports above the stage. The mill finish refers to the raw, unanodized aluminum surface, which is functional and can be painted to match the theater's grid if desired.

This professional-grade track system is an essential infrastructure component for theaters, television studios, and performance venues with permanent or semi-permanent cyclorama installations. It greatly enhances the efficiency and flexibility of lighting crews, enabling quick repositioning of lights to achieve perfectly even vertical washes of color and light across the entire surface of the cyc. By providing a reliable and smooth-gliding solution, the M140 Cyc Track ensures that lighting for backdrops can be managed with precision and repeatability, which is fundamental to professional stagecraft.