The Light Source M140 Cyc Track Mill is a specialized aluminum extrusion track designed specifically for hanging and adjusting lighting fixtures used to illuminate cycloramas, skydrops, and large seamless backdrops in theatrical, film, and television studios. This model is 120 inches (10 feet) in length, providing substantial horizontal coverage for positioning multiple fixtures. Constructed from 6063-T52 aluminum alloy, the track offers an optimal balance of strength, lightweight properties, and excellent machinability. The T52 temper indicates it has been stretched to achieve improved straightness and stability, which is critical for ensuring the track hangs perfectly level and does not sag under load over its considerable span. The track's design incorporates a clean, mill finish, which is the raw, uncoated aluminum surface, often preferred in studio environments for its non-reflective quality and industrial aesthetic.

The primary function of the Cyc Track is to serve as a rigid, overhead rail system that allows lighting fixtures—typically scoops, floods, or dedicated cyc lights—to be easily positioned, focused, and re-focused along its length. The track features a specific profile, often with a T-slot or channel, that is compatible with standard hangers, sliding carriers, or pipe clamps. This enables technicians to smoothly move fixtures to any point along the track and securely lock them in place, facilitating precise control over the evenness and blend of light across the entire surface of the cyc. The ability to adjust fixture spacing and angle without needing to re-rig from the structure above is invaluable for achieving a smooth, gradient-free wash of color or light.

For lighting directors and studio technicians, this component is a fundamental piece of infrastructure for professional scene lighting. Its long 120-inch length allows for the efficient lighting of wide backdrops, reducing the number of individual hanging points needed from the grid. The robust 6063-T52 aluminum construction ensures long-term durability and reliability under the heat and weight of multiple fixtures. By providing a dedicated, adjustable mounting system for cyc lighting, the M140 Cyc Track Mill enhances workflow efficiency, enables finer artistic control, and contributes to the creation of the deep, uniform washes of light that are essential for high-quality production values in performance and broadcast spaces.