OptiTrack - 'PrimeX 120'
Maximum Accuracy, Longest Range, Highest ResolutionThe OptiTrack PrimeX 120 is a high-performance motion capture camera designed for applications that require our class-leading 3D motion measurement precision in a very large volume. Nothing compares with the accuracy and durability of the PrimeX 120. Record 3D motion with precision and accuracy at up to 4096x3072 resolutions with a native 300Hz frame rate and 3.33ms latency. The PrimeX 120 offers OptiTrack's longest camera-to-marker range, communicating with active markers from 300ft away. A single RJ45 Ethernet port facilitates data and camera sync as well as PoE++ delivery.
12.0 MPResolution
+/- 0.1 mm3D accuracy1
300 FPSnative frame rate
1000 FPSmax frame rate2
The Longest Camera-to-Marker Range
Long Range PerformanceThe Primex 120 and Primex 120W cameras offer OptiTrack's longest camera-to-marker range for Passive and Active markers. OptiTrack accuracy with more range enables huge tracking volumes for a wider variety of training and simulation scenarios, extreme ground or aerial robotic facilities, larger cinematic virtual production studios and more.

OptiTrack's Highest-Resolution Cameras
enable users to track smaller markers that are both closer to each other, and farther away from the cameras.
OptiTrack's Highest-Resolution Cameras
enable users to track smaller markers that are both closer to each other, and farther away from the cameras.
OptiTrack's Highest-Resolution Cameras
enable users to track smaller markers that are both closer to each other, and farther away from the cameras.
Designed and Manufactured in Oregon
PrimeX equals PrecisionPrimeX cameras are designed and manufactured in-house at OptiTrack’s headquarters in Oregon to ensure our exacting quality standards are met. We design lenses with low-distortion and true 10-bit grayscale depth sensor processing which reduces noise and improves precision—resulting in perfectly crisp images, better centroids and better 3D accuracy.
Premium Lens Quality
"Fast glass" lensOptiTrack custom design our own super low distortion, “fast glass” lenses for optimal marker tracking. The Primex 120’s standard 18mm lens is treated with a wide band anti-reflective coating, which dramatically increases light transmission to the imager, yielding larger volumes and more precise 3D data.
Choose the wider-view optionThe standard PrimeX 120 offers a broad 51° x 39° Field of View (FOV). For wider volumes that demand elite accuracy, the Primex 120W is available with a 65° x 51° 18mm wide-view lens. The additional FOV lets users deploy fewer cameras to capture movement in wider areas.
Active & Passive Motion Tracking

ACTIVE AND PASSIVE TRACKING
Motive processes OptiTrack camera data to deliver global 3D positions, marker IDs, rotational data (with respect to the object’s local reference), and of course, hyper accurate skeletal tracking.
Passive markers - or retroreflective markers, including spheres, hemispheres, and even flat reflective discs, are easily tracked with OptiTrack’s precision, long range cameras.
Signature Pulse Active invisible IR LEDs, enable 100% error free marker ID’s, low latency data delivery and < 0.1s acquisition time. It’s become the benchmark for low latency VR tracking, ground truth systems for AR, and high subject count robotics applications such as drone swarms.
ACTIVE AND PASSIVE TRACKING
Motive processes OptiTrack camera data to deliver global 3D positions, marker IDs, rotational data (with respect to the object’s local reference), and of course, hyper accurate skeletal tracking.
Passive markers - or retroreflective markers, including spheres, hemispheres, and even flat reflective discs, are easily tracked with OptiTrack’s precision, long range cameras.
Signature Pulse Active invisible IR LEDs, enable 100% error free marker ID’s, low latency data delivery and < 0.1s acquisition time. It’s become the benchmark for low latency VR tracking, ground truth systems for AR, and high subject count robotics applications such as drone swarms.
Versatile Camera Range
Mix and match camerasSystems can pair PrimeX 120 cameras with any other PrimeX or Prime Color cameras to create the optimal infrared configuration for any use case and deliver the highest 3D tracking accuracy to any environment.
Built-in LED Status Indicator
on-camera status indicatorPrimeX cameras can keep users informed with definable colour LED indicator rings surrounding the lens. Recording a performance? Everyone on set knows the system is recording. Select a camera? It instantly changes colour. Have your own idea? Simple software controls help you make it so.
New, higher output strobe. Ultra high power LEDs provide improved range for any given shutter setting. The world's longest range motion capture camera just got even better.
Greyscale Reference Video
Full resolution greyscale reference videoAll PrimeX cameras can be used as a reference video source - with synchronized, calibrated 3D overlay. Deliver and/or record full resolution, full frame rate video with 3D overlay of markers, rigid bodies, skeletons, etc.
Pairs Perfectly with the eSync 2
External Sync in/out, Genlock, and Time Code Synchronize any Prime and PrimeX cameras to any signal or source with the eSync 2 with all the functionality and flexibility you’d expect with a professional tracking system. Cameras sync to dozens of sources including a professional cameras’ Genlock signal, where record and other event triggering can be managed from general purpose inputs and software commands.
Use the sync output signal as a master or to trigger force plates, EMGs and National Instrument DAQs for flexible yet precise hardware synchronization. Highly accurate frame timing can also be achieved with SMTPE Time Code for ease in editing and logging. OptiTrack’s free and open SDK allows for further customization within the timing protocols.
Customisable Solutions
Expert system configuration for any spaceOptiTrack has built over 30,000 tracking systems in areas of all shapes and sizes. Our experts can help guide you on the most economical and suitable tracking system for your needs—for today and the future.
Pair with Motive Tracking Software
it's more than just camerasPrimeX cameras work hand-in-hand with OptiTrack’s Motive 3D motion capture software featuring Trained Markersets, Continuous Calibration, Skeletal Solver and more. The PrimeX cameras and Motive enable users to see and analyze tracking data to inform everything from robotics and movement sciences to video game animation, cinematic virtual production and location-based virtual reality.
Free Customisable SDK
OEM & computer vision integrationIncorporate PrimeX 120 cameras into OEM tracking or computer vision applications via the free SDK, a C/C++ interface for control of and access to raw camera frames, image processing modes, camera settings, 2D object data, camera synchronization and all 3D data.