Lee Filters 1/2 CTS Gel Filter 48 inch 25 foot Roll

Precise Color Temperature Shift

This 1/2 CTS gel filter converts tungsten sources at 3200K toward a balanced daylight tone near 4300K. The 48-inch width by 25-foot roll supplies enough material for large fixtures and repeated trimming. It is built for film, photography, stage and broadcast work where accurate color balance matters. Professionals who need a moderate warming correction rather than a full conversion will find it suited to their workflow.

Integration with Lighting Fixtures

The gel cuts to size for barn doors, frames or diffusion panels, letting you match the filter to each fixture without waste. High light transmission keeps output bright so you can avoid pushing ISO or opening the aperture further. Heat resistance prevents warping or color shift during long sessions under hot studio lamps. Durability against tears and scratches means the roll survives frequent handling and re-rigging.

Consistent Output Under Continuous Use

The formulation resists degradation when fixtures run for extended takes, holding the 1/2 CTS shift steady from the first frame to the last. Minimal transmission loss stays constant, so exposure calculations remain valid throughout a shoot. Color fidelity does not drift as the material warms, avoiding mid-session surprises. The roll format supports high-volume productions that demand reliable performance day after day.