X-Sight 4000 series Extensometers
The X-Sight 4000 series optical extensometers (OE) are universal devices suitable for a wide range of material and component testing such as tensile, compression, flexural, shear, and torsional tests.
Engineered to cater to a wide range of material and component tests, these extensometers represent the pinnacle of innovation in measuring strain, total length, delta length, angle, and much more.
Model coding

The 4000 series model designation reflects the system configuration. Each element of the code defines a specific parameter:
4116 | 4116–D | 4116–3D
4 – 400 mm housing
1 – Number of Camera Units (1-3)
16 – MPx resolution (02, 05, 06, 09, 16)
D – Dual Camera
3D – 3D setup
Extensometer modes
Even with the advanced capabilities of the X-Sight 4000 Series Extensometer, there are scenarios where the viewing area might still be too limited for certain tests. In such cases, multiple extensometers can be connected together in various modes to expand the field of view and enhance measurement precision. This flexibility allows users to tailor their setup to specific testing requirements.
- Single Mode: The most common setup. Multiple single cameras can be used simultaneously.
- Joined Mode: Incorporates identical Fields of View (FoV), enabling smooth movement of a point across cameras.
- Dual FoV Mode: An uncommon setup characterized by varying resolutions.
- Separated FoV Mode: This mode is designed for long specimens with relatively small extensions or deformations.






