Flex 3 Specs

Flex3 Grid

Flex 3

Documents

Quick Start Guide	Download document
Spec Sheet	Download document

Image Sensor

Resolution	640 x 480
Native Frame Rate	100 Hz
Latency	10 ms

Tracking Performance & Range¹

3D Accuracy	+/- 0.5 mm
Active Distance
Passive Distance	6 m

Filter & Lens

Filter Switcher	Optional
Adjustable Focus
Adjustable F-Stop
Stock Lens	S-Mount 4.5mm f/1.6 Lens
Optional Lens	S-Mount 3.5mm f/1.6 Lens

Global Shutter

Default Speed	1 ms
Minimum Speed	0.01 ms
Maximum Speed	7.5 ms

Image Processing

Object
Raw Grayscale
MJPEG Grayscale
Duplex Mode
Primex 120 Full Resolution MJPEG
Segment

Connections

Data Port	USB 2.0
Camera Sync Port	USB 2.0
Power Port	USB 2.0

LED Ring

Number of LEDs	26
LED Wavelength	849 nm IR
LED Output	Strobe or Continuous

Size & Weight

Width	1.78 in
Height	1.44 in
Depth	2.94 in
Weight	0.26 lbs

Camera Body

Material	Aluminum
Mount Type	1/4-20 tripod thread
Status Indicator Type	2 digit numeric LEDs status indicators
LED Activity Type	Single LED

Product questions?

Contact us and talk to a sales representative.

Ready to build your system? Our team will tailor a motion capture solution to your space, goals, and application — so you get the best performance from day one.

Accessibility Terms of Use Privacy Legal

© 2026 NaturalPoint, Inc. DBA OptiTrack