Arri True Blue ST5 5000W Fresnel 10" Lens is part of the ARRI TRUE BLUE line of fresnel fixtures which represent an unprecedented evolution of the studio fixtures that have been popular workhorses for over two decades. Following extensive research and feedback from lighting professionals around the world, combined with advances in technology, ARRI has designed a series of six highly innovative lampheads with over 30 new improvements for studio and location lighting.

While the overall weight of the TRUE BLUE fixtures has been reduced, there have been no sacrifices to quality; in fact many components now offer greater strength and resistance to corrosion. Maintenance and repair are facilitated by simplified access to internal components, and the smooth lamp housing surfaces are now easier to clean.

One particular focus of enhancements to the lampheads has been their adaptability to accessories. The tilt lock has been dramatically improved by a stainless steel friction disc that locks tight to eliminate the danger of forward tilting when heavy, front-mounted accessories are in use. In addition, a new stirrup center adjustment allows the lamphead to slide until its center of gravity is either at or near the tilt lock, depending on the accessories attached.

The new Stegmaier connector, a rotatable cable outlet, permits swift adjustment between ideal cable orientations for both ceiling-grid and floor-stand mounting. Improved barndoors are stronger, less susceptible to bending, and can be inserted vertically without being damaged when the lamphead is placed on a flat surface.

ARRIﾒs new patented cross cooling system, which encourages a stream of air to pass around the Fresnel lens and into the lamphead from the front, has reduced the lamp housing temperature of TRUE BLUE units by 25% and the lens temperature by 17%.