Primex 41
Primex 41
Range and precision. The most precise large scale 3D measurement system in the world was built with Prime technology. Primex made it better.
Intuitive & Elegant Design
In designing the Primex series, OptiTrack considered the complete lifetime of a motion capture camera—from unboxing to setup, capture, and teardown. Each process is elegantly accommodated with a nod to simplicity and usability.
On-Camera Status Indicator
Primex cameras can keep users informed with definable color LED indicator rings surrounding the lens. Recording a performance? Everyone on set knows the system is recording. Select a camera? It instantly changes color. Have your own idea? Simple software controls help you make it so.
“Fast Glass” Lens Engineering
OptiTrack custom designs their own ultra-low distortion, “fast glass” lenses for optimal marker tracking. The Primex 41’s lenses feature a wide-band anti-reflective coating for greater light transmission, larger volumes, and more precision 3D data.
Need a wider view? The Primex 41 offers a 51° × 51° FOV, while the 41W version expands to 65° × 65° with an 8.9 mm lens—allowing wider coverage with fewer cameras.
Incredible Range
100’ passive camera-to-marker range and over 150’ with Signature Pulse Active3, all with discrete infrared wavelengths. This provides up to 290,000 cu ft/camera for tracking passive markers and over 1,000,000 cu ft/camera for tracking of active markers.
Powerful On-Board Image Processing
All OptiTrack cameras feature integrated image processing. The algorithms which identify markers and marker centers, and the sequence of data delivery are important steps to achieve both world leading accuracy and low latency.
Outdoor Capture Out-of-the-Box
Primex 41 extends its incredible range for outdoor capture as well. For passive markers, the outdoor (bright sunlight, midday) range is about 50’ (16m). For Signature Pulse Active technology the range is > 70’ (21m).
Primex Equals Precision.
In-house designed low distortion lenses and true 10-bit grayscale depth reduces quantization noise and improves precision—resulting in perfectly crisp and beautiful images, better centroids and better 3D accuracy. Megapixels matter, but image quality matters more.
Easy Set-Up
Aim assist and easily accessed lens controls make the Primex 41 fast and easy to set up.
Tracks Passive and Active Markers
With positional errors less than +/-0.10mm and rotational errors less than 0.5 degrees. For some tracking applications, customers find benefit in using a combination of active and passive markers.
Primex is Feature Packed
Full Resolution Grayscale Reference Video
All Primex cameras can be used as a reference video source – with synchronized, calibrated overlay. Deliver and/or record full resolution, full frame rate video with 3D overlay of markers, rigid bodies, skeletons, etc.
OEM & Computer Vision Integration
Incorporate Primex 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.
Full Resolution Grayscale Reference Video
With the eSync 2, cameras sync to nearly any source, including Genlock and SMPTE Time Code, for precise, flexible hardware synchronization. Trigger force plates, EMGs, and DAQs, or manage events through inputs and software commands, with full customization available via OptiTrack’s free, open SDK.
Mix and Match Cameras
OptiTrack cameras work together seamlessly to build the perfect motion capture system for any use case.
Zero Drift. Pure Precision.
Motive calibrates automatically and continuously with data collected during normal use of the system. No longer does your calibration degrade over time with changing temperatures or challenging building movement—it is always a “fresh” calibration.
Motive is behind every seamless workflow
OptiTrack’s Motive software delivers speed, precision, and ease of use, streamlining everything from calibration to real-time streaming, while tools like Aim Assist and auto-masking make even large system setups simple for one person.
- 3D accuracy referenced is typical for a 30’×30′ (9m×9m) tracking area. Range is estimated using a 14 mm marker with cameras at an exposure of 800, gain of 6, and the lowest f-stop. ↩︎
- Frame Rate Resolution FOV (standard 5.5mm lens)
180 fps 2048×2048 56°×45°
240 fps 2048×1440 49°×40°
500 fps 2048×720 51°×18°
1000 fps 2048×352 51°×9° ↩︎ - Signature Pulse Active markers provide their own unique ID, resulting in 100% error free labels. When introduced into the tracking area, the LED markers are acquired in < 0.1 seconds. Unique marker placements based on spatial separation, normally required for passive marker tracking, are not required for distinguishing multiple rigid bodies. ↩︎
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