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Opto Engineering TCLWD250

Telecentric Lens 2.50X for 11mm Sensor

Price: $2,055.00 each

Not available for purchase outside of North America.

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Long working distance telecentric lenses for 2/3" sensors
Telecentric in both object and image space for maximum precision
Simple robust industrial design
Each lens is factory tested and delivered with the test report
Each lens meets or exceeds specifications

This telecentric lens has been specifically designed for electronic and semiconductor Automated Optical Inspection (AOI) and tool pre-setting machines. It features a working distance of 135 mm while ensuring excellent optical resolution, high telecentricity and low distortion, thus matching and even exceeding the industrial requirements for the target applications. The long working distance allows for extra space, which is essential if you need to install illumination, pick-up tools or provide the necessary separation from hazardous production processes.

In addition to the long working distance, this lens delivers a numerical aperture large enough to take advantage of high resolution cameras, making these lenses a perfect match for general-purpose 2D measurement systems.

Telecentric lenses are the key component of accurate machine vision measurement systems. Unlike conventional lenses, optical magnification remains constant within the field of view and depth of field. This is especially important on the manufacturing floor, where part fixtures and camera triggers are seldom 100% repeatable.

The working distance (measured between the front of the lens and your object) should be kept within +/- 3% of the nominal value shown in the specifications for maximum resolution and minimum distortion. The f-number shown is the “working” or “real” f-number of the lens when used as a macro. Please contact us if you need a lens having a different aperture.


Lens Mount: C-Mount
Length: 157.0 mm
Filter Thread: None (slip-on filters avaiable)


Lens Type: Telecentric
Magnification: 2.500
Distortion: < 0.10 %
Depth of Field: 0.30 mm
Telecentricity: < 0.06 degrees
Working Distance: 132.3 mm
F#: 20.0
Image Circle: 11.00 mm (2/3")

For the sharpest image, keep the object within half the specified depth of field. The length is measured from the lens's front to its flange.

Learn about lenses in our Lens Tech Center.

Opto Engineering USA offers a one year warranty from the day the part leaves the factory. For further information, please refer to the manufacturer's website.

If you're not confident this lens will meet your needs, please ask us to confirm your selection prior to purchase. Some lens models may be available for a 20 day evaluation. Lenses in new condition may be returned for credit within 20 days of delivery. A restocking charge will apply if packaging materials are damaged or marked.

All returns must be pre-authorized by Machine Vision Store and shipped with freight pre-paid. Please contact us to request authorization and instructions. The item's serial number and associated sales order number will be needed.