Active Crown is a virtual production camera tracking device that delivers accurate, real-time positional data for cameras in LED volumes and ICVFX environments. It mounts to your production camera and carries a set of IR active markers — high-power LEDs on detachable magnetic stalks- that are tracked by Vicon cameras. Shōgun Live reads those markers to compute the camera’s position and rotation in real time, while Shōgun Post handles clean-up and data control. The LEDs are always on and require no sync, so tracking stays consistent throughout a shoot.

Active Crown turns unreliable tracking into robust, stable motion data by combining high-power active markers with a design engineered to fight occlusion. The thin stalks are shaped and tested to prevent self-occlusion, and the multi-directional markers stay visible across multiple camera angles, so the crown keeps tracking cleanly even in occluded stage environments. Users have reported a marked reduction in rotational noise compared with previous setups.

Active Crown is built to work within the Vicon ecosystem and is tracked by Vicon’s IR-sensing cameras, running through Shōgun Live and Shōgun Post. It mounts via standard camera threads (two 1/4″-20 UNC and one 3/8″-16 UNC) and is compatible with standard-thread mounting plates including ARRI Pin-Lock and other plates supported by Vicon cameras (mounts not included).

Active Crown is designed to minimize recalibration. Its detachable magnetic stalks snap back to consistent positions, which saves time on recalibration when you reconfigure the stalk layout between setups. You’ll still calibrate your Vicon camera system as normal, but the magnetic base means you can change the crown’s configuration for different scenes without a full re-setup each time. For step-by-step calibration guidance, refer to the Vicon documentation or your support contact.

Active Crown is designed for virtual production — specifically LED volumes and ICVFX (in-camera VFX) stages. Its structured, robust build is made to withstand the most challenging stage environments, and its occlusion-resistant marker design suits busy sets where cameras and crew frequently break the line of sight.

Yes. Active Crown is purpose-built for LED volume and ICVFX productions, delivering the stable, accurate camera tracking those environments demand. Paired with Shōgun, it also supports ambitious multi-camera shoots, letting studios track several production cameras at once.

Active Crown mounts to your camera using its standard 1/4″-20 and 3/8″-16 threads or a compatible mounting plate such as ARRI Pin-Lock. You then attach the IR LED stalks to the magnetic sockets on the base; the kit includes six stalks (three small, one medium, two large) that you can arrange to suit your scene, plus blanking caps for any unused sockets. Power the unit over USB-C (5V @ 3A) with the supplied cable, then track the camera in real time through Shōgun Live. For full setup and configuration steps, follow the Active Crown documentation or contact the Vicon team.