Continuing the evolution of a tungsten studio lighting workhorse, the ARRI ST1 1000W Fresnel offers advancements including an efficient new cross-cooling system, a sliding stirrup for easy center-of-gravity adjustment, stainless steel friction disc tilt lock for rigid lock-off, barndoors made of a special alloy with a high strength-to-weight ratio and effective tightening function, and improved weather protection.
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