primex 41 hero mobile

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.

4.1 MP

resolution

+/- 0.10 mm

3D accuracy¹

180 FPS

native frame rate

250+ FPS

max frame rate²

primex41 activision cod
primex41 jungle book
primex41 caltech drone lab
ohio state lab

Activision: Call of Duty Modern Warfare. Stunning visuals and captivating gameplay with one of the largest OptiTrack systems ever built.

primex41 elegant design

Intuitive & Elegant Design

In designing the Primex series, we 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.

primex41 fast glass

“Fast Glass” 6.8mm Lens

We custom design ultra–low distortion “fast glass” lenses for optimal tracking. The Primex 41’s 12 mm lens features a wide-band anti-reflective coating for greater light transmission, larger volumes, and more precise 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.

primex41 incredible range

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.

Industry-Leading Precision

Our 3D precision is the best in the business, outperforming even the highest-resolution competition—which is why Activision selected OptiTrack to build the largest and most accurate performance capture stage in existence.

on board processing

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).

peak

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.

motive aim assist

Easy Set-Up

Aim assist and easily accessed lens controls make the Primex 41 fast and easy to set up.

vr characters

Track Passive and Active Markers

With positional errors less than +/-0.15mm 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

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.

stretch
mix and match cameras

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.

Monitor Frame
camera

Find Your Perfect Camera

Compare specs, performance, and precision across our full lineup to choose your ideal setup.

system builder card

Build Your System

Plan your space, configure hardware, and visualize your full setup before purchasing.

  1. 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 12.5mm lens)

180 fps

2048x2048

51°×51°

240 fps

2048x1440

51°×37°

500 fps

2048x720

51°×18°

1000 fps

2048x352

51°×9°

  1. 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.

Footer

© 2026 NaturalPoint, Inc. DBA OptiTrack