As a beam control accessory that offers full control of stray beams and spill, Concentric Rings deliver 45° cutoff like a full Top Hat, but they do it in a shorter device. When space is at a premium, such as on moving lights hung in a tight rig, Concentric Rings are often the designer's first choice for beam control.
Some designers even use Concentric Rings as eye candy. These accessories provide a "Svoboda-like" style when used on lighting fixtures that are in view of the audience, and present a deeply theatrical feel.
Available with black flocked interior for maximum reduction of glare and spill.