Soft, Omnidirectional Light Wrap

The ARRI Round Diffuser 4ft (L2.0052527) is an essential magnetic optical accessory designed for the 4-foot ARRI Omnibar 4 linear LED fixture. By expanding the fixture's output to a wide 145° beam spread, this diffuser effectively mimics the soft, visual quality of classic 4-foot tube lighting. It is an ideal lighting modifier when you need gentle, wrap-around key light or soft fill for large-scale setups, talent tracking, and tight interior locations.

Fast Magnetic Deployment

Built to accelerate workflows on fast-moving film and broadcast sets, the Round Diffuser features a front-loading magnetic interface. It clicks instantly into place on the Omnibar 4 housing without needing mechanical latches or mounting frames. This allows gaffers and lighting technicians to swap between open-face, flat diffuser, or tube-style beam profiles in seconds.

Direct-View Visual Compatibility

Whether used as an off-camera key or rigged in shot as a practical design element, the rounded profile smooths out pixel zones into an even, continuous line of light. Its lightweight yet rugged build preserves the Omnibar’s sleek form factor, providing cinematic flexibility wherever your production goes.