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OptiTrack Flex 3
  • OptiTrack Flex 3

    A small volume motion capture camera that's surprisingly affordable. The OptiTrack Flex 3 camera offers integrated image capture, processing, and motion tracking in a powerful, compact package. Customize your camera with user-changeable M12 lenses, black or red case treatments, and OptiTrack's exclusive Filter Switcher technology. Scalable, modular, and a fraction of the price you would expect - Flex 3 cameras deliver the world's premier optical tracking value proposition.


    The Flex 3 is capable of capturing fast moving objects with its global shutter imager and 100 FPS capture speed. By maximizing its 640 × 480 VGA resolution through advanced image processing algorithms, the Flex 3 can also track markers down to sub-millimeter movements with repeatable accuracy.

    Technical Specifications:

    Flex 3 Dimensions

    Width: 1.78 inches (45.2 mm)

    Height: 2.94 inches (74.7 mm)

    Depth: 1.44 inches (36.6 mm)

    Weight: 4.2 ounces (0.1 kg)


    Image Sensor

    Imager Size: 4.5 mm x 2.88 mm

    Pixel Size: 6 µm × 6 µm

    Imager Resolution: 640 x 480 (VGA, windowed from 752 x 480)

    Frame Rate: 25, 50, 100 FPS

    - Frame decimation (transmit every Nth frame)

    Spatial Dimension: 320 x 240, 160 x 120

    Latency: 10 ms


    Global Shutter Speed

    - Default: 1/1000th of a sec. (1 ms)

    - Minimum: 1/50,000th of a sec. (20 µs)


    Image Processing Types



    Precision Grayscale

    Raw Grayscale

    MJPEG Grayscale


    LED Ring

    26 LEDs

    850 nm infrared

    Adjustable brightness

    Strobe or Continuous Illumination



    Lens & Filter

    Stock Lens:

    4.5 mm F#1.6

    - Horizontal FOV: 46°

    - Vertical FOV: 35°

    Optional Lenses:

    3.5 mm F#1.6

    - Horizontal FOV: 58°

    - Vertical FOV: 45°

    M12 Lens Mount

    Adjustable focus w/ spring assist

    800 nm IR long pass filter

    Optional: 800 nm IR long pass filter w/ Filter Switcher


    Camera Body

    Mounting: 1/4"-20 tripod thread (x2)

    2 digit numeric LEDs status indicators


    Input/Output & Power

    Data: USD 2.0

    Camera Sync: USB 2.0 or Wired Sync

    Power: USB 2.0

    - Standard: 5V @ 490mA

    - High: 680mA

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