The Chimera Speed Ring 2900 is a precision adapter designed to mount Chimera softboxes onto ARRI Arrilite 650, 800, and 1000 tungsten fresnel fixtures. This speed ring serves as the critical interface between the hard, focused light of the fresnel and the large, diffused light source created by the softbox. It attaches securely to the front of the Arrilite fixture, replacing the standard lens door, and provides a circular frame with internal channels or a Velcro system. The flexible rods of the Chimera softbox are then inserted into this frame, creating a stable and correctly aligned soft light source that is ideal for portrait, film, and television lighting where soft shadows and flattering illumination are required.

Constructed from lightweight yet durable aluminum, the speed ring is engineered for quick setup and breakdown on busy sets. Its specific design ensures a perfect fit for the designated ARRI models, maintaining the optical center and preventing vignetting. By using this adapter, cinematographers and photographers can leverage the consistent color temperature and adjustable beam focus of professional tungsten fresnels while gaining the superior light quality modification of a Chimera softbox, combining the best attributes of both tools for high-end image creation.