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The V120:Duo tracking system offers the power of multiple-camera, 6DoF object tracking in a single, plug-and-play package. Each tracking bar is self-contained and pre-calibrated prior to shipment—meaning that no user calibration is required—for out of the box motion tracking that is simple to use, but still offers the leading accuracy and flexibility of optical tracking technology.

contact us today


(+61) 3 9687 8638


Factory 31, 91 Moreland Street,
Footscray, VIC 3011

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Plug-and-play multi-camera motion tracking

Enjoy many of the same benefits as large scale, multi-camera tracking—such as enhanced accuracy, larger capture volumes, and tracking of multiple, customizable objects—distilled down to a single hardware unit and simple I/O.

Super portable, desktop friendly capture

At less than one foot in total length, the V120:Duo packs comprehensive tracking capabilities into a portable form factor—enabling easy transport and rapid deployment of the entire system.

Bundled engineering-grade software

Every purchase of Duo or Trio hardware includes a free license of Motive:Tracker, OptiTrack’s engineering-grade rigid body and marker tracking application. Features include:

6DoF object tracking

Quickly create custom rigid bodies to track position and orientation in all six degrees of freedom. Custom marker arrangements enable you to track a variety of object shapes with either passive or active markers. Additionally, high level tracking filters and constraints can be implemented to further tune when markers and rigid bodies are tracked.

Real-time data streaming

Built-in support for industry standard VRPN and trackd protocols makes integrating real time tracking data with your applications a snap. Stream to or from your application using the included network transport for convenient cross-platform communication. For a wider range of data streaming types, use OptiTrack’s NatNet SDK.

Data recording, playback, and export

Tracking data can be recorded within Motive:Tracker for playback and post-processing. Export recorded data in both C3D and CSV formats for motion capture and analysis.

Proven camera architecture

The Trio is built on OptiTrack’s custom image processing platform, which offers professional motion tracking capabilities at unparalleled pricing.

On-camera image processing

A variety of pre-processed image types are supported on-camera, resulting in decreased bandwidth and CPU load and more efficient motion tracking. Image processing types include:

  • Precision Grayscale
  • Segment
  • Object
  • MJPEG-compressed grayscale
  • Raw grayscale

Camera control

Access a variety of camera settings with the Motive:Tracker Application and API for greater control over what your cameras capture and report to the PC for processing. Available settings include:

  • Image processing type
  • Frame rate
  • Exposure
  • Threshold
  • Illumination
  • Filter switching
  • And more…

Precise, efficient motion tracking

The Duo is capable of capturing fast moving objects with its global shutter imager and 120 FPS capture speed. Using advanced image processing to maximize resolution from its two 640 × 480 VGA sensors, the Duo can also track markers down to sub-millimeter movements with repeatable accuracy.

External synchronization

External sync in/out is supported with the included I/O-X sync box, for seamless compatibility with shutter glasses and other hardware devices.

OEM integration

Incorporate the Duo into your own applications for seamless OEM integration via the Motive:Tracker API, which is included free with every Duo purchase. This API provides software development access to the full tracking and streaming capabilities of the Duo.

Need more? (accuracy, coverage, software options…)

If you like what the V120:Trio offers, but you need the capabilities of a full-scale tracking system, be sure to visit our system bundles page to find out more about multi-camera systems.

V120:Duo/TrioFull Multi-Camera Systems
Pre-calibrated for Plug and Play motion tracking
OptiTrack’s tracking bars are pre-calibrated at the factory, prior to shipment—meaning that no user calibration is required. Full multi-camera systems built with multiple cameras require camera arrangement, cabling, and calibration by the user prior to tracking.
6DoF tracking with a single device
A single tracking bar device can track rigid bodies in 6DoF out of the box, while OptiTrack motion capture cameras require multiple (3+) calibrated cameras to capture 6DoF object data.
Highly portable
Each tracking bar is a self-contained system, offering engineering-grade 6DoF tracking in a highly portable form factor. While full motion capture systems can provide superior scalability and performance, they cannot be transported or deployed nearly as quickly as a tracking bar.
Includes free motion tracking software
Each tracking bar is bundled with a free license of Motive:Tracker, OptiTrack’s engineering-grade rigid body and marker tracking application. Multi-camera systems require the additional purchase of Motive:Tracker, Motive:Body, or Expression software for motion capture capabilities.
Expandable camera counts and volume sizes
Our multi-camera systems can be customized with additional cameras, while tracking bars must be used as stand-alone devices. Adding more cameras enables:

  • 360° camera arrays for reduced occlusion and increased tracking accuracy
  • Larger and more complex capture volumes
  • More camera redundancy for improved coverage throughout volume
  • Expandable systems for enhancing tracking capabilities over time
Multiple camera positions
Cameras tracking from multiple locations improves redundancy, range of motion and coverage. Markers blocked from one camera’s view can remain visible to cameras at other positions which allows tracking to continue seamlessly.

  • Width: 11 inches (279.4 mm)
  • Height: 1.6 inches (40.6 mm)
  • Depth: 2 inches (50.8 mm)
  • Weight: 1.3 pounds (0.6 kg)
  • Mounting: 1/4”-20 tripod thread
  • Display: 128 × 22 OLED

LED Rings

  • No. of LEDs: 26 (× 2)
  • Wavelength: 850 nm IR
  • Strobe or Continuous Illumination
  • Adjustable brightness

Lenses & Filters

  • Standard M12 Lenses
    • Horizontal FOV: 47° 1
    • Vertical FOV: 43°
    • Focal Length: 3.5 mm
    • F-number: 2.0
  • Left and Right Cameras
    • 800 nm IR long pass filter

Input/Output & Power

  • Data: USB 2.0
  • Camera Sync: internal or external (via IO-X)
  • 12V @ 3A

System Requirements

  • Windows Vista/7/8/10
  • 1GHz processor
  • 1GB of RAM
  • 50MB of available disk space
  • USB 2.0 Hi-speed port

Image Sensors (×3)

  • Imager Size: 4.5 mm × 2.88 mm
  • Pixel Size: 6 µm × 6 µm
  • Imager Resolution: 640 × 480 (VGA, windowed from 752 × 480)
  • Frame Rate: 30, 60, 120 FPS
    • Frame decimation (transmit every Nth frame)
  • Spatial decimation: 320 × 240, 160 × 120
  • Latency: 8.33 ms
  • Shutter Type: Global
  • Shutter Speed:
    • Default: 1/1,000th of a sec. (1 ms)
    • Minimum: 1/50,000th of a sec. (20 µs)

Image Processing Types

  • Segment
  • Precision Grayscale
  • MJPEG Grayscale
  • Raw Grayscale

In the Box

  • 1 V120:Duo
  • 1 Quick Start guide
  • 1 license of Motive:Tracker
  • 1 12V universal power supply (US/EU-compatible)
  • 1 USB uplink cable (5 meters)
  • 1 Hand rigid body
    Part Number: MCP1145
  • 4 M3 Small Short Marker Bases
    Part Number: MB09W05HM3
  • 4 M4 Medium Short Marker Bases
    Part Number: MB15W05HM4
  • 4 M4 Medium Long Marker Bases
    Part Number: MB15W15HM4
  • 4 M3 7.9mm Markers
    Part Number: MKR079M3
  • 4 M4 9.5mm Markers
    Part Number: MKR095M4
  • 8 M4 12.7mm Markers
    Part Number: MKR127M4
  • 10 Ø3/8 Rubber Adhesive Dots
    Part Number: MBA10MMR
  • 10 Ø1/2 Rubber Adhesive Dots
    Part Number: MBA13MMR

Want To Know More?

Our team of Motion Capture professionals are just an email or a phone call away.

contact us today


(+61) 3 9687 8638


Factory 31, 91 Moreland Street,
Footscray, VIC 3011

Send a Message

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