Lenses

Telecentric lenses

How to choose a telecentric lens

Telecentric and bi-telecentric lenses keep magnification constant through the depth of field, so parts measure the same size wherever they sit. Pick by magnification (sensor size / field of view), working distance and the largest sensor you use.

Shop by sensor format: 4/3-inch telecentric lenses · 1.1-inch telecentric lenses · 1-inch telecentric lenses · 2/3-inch telecentric lenses · 1/1.8-inch telecentric lenses · 1/2-inch telecentric lenses · 1/2.5-inch telecentric lenses · APS-C telecentric lenses · APS-H telecentric lenses · Full frame telecentric lenses
Shop by mount: F-mount telecentric lenses · M58-mount telecentric lenses · M42-mount telecentric lenses · M72-mount telecentric lenses
Shop by magnification: 0.1x telecentric lenses · 0.2x telecentric lenses · 0.3x telecentric lenses · 0.4x telecentric lenses · 0.5x telecentric lenses · 0.6x telecentric lenses · 0.7x telecentric lenses · 0.8x telecentric lenses · 1x telecentric lenses · 1.5x telecentric lenses · 2x telecentric lenses · 2.5x telecentric lenses · 3x telecentric lenses · 4x telecentric lenses · 6x telecentric lenses

2965 models Configure a systemAll lenses
Telecentric lenses

2857-2880 of 2965 models

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LS-TCL-17520.434x, WD 24 mm, 1/2.5", C-mount telecentric lens 0.434xC-mount1/2.5"24±1 mmF4.2Ø 16.6 mm$1,609.00 Ships in 2-3 weeks
LS-TCL-14011x, WD 24 mm, 1", C-mount telecentric lens 1xC-mount1"24±1 mmF6.5Ø 16.6 mm$1,189.00 Ships in 2-3 weeks
LS-TCL-14711.108x, WD 24 mm, 1.1", C-mount telecentric lens 1.108xC-mount1.1"24±1 mmF7.2Ø 16.6 mm$1,189.00 Ships in 2-3 weeks
LS-TCL-14002.8x, WD 90 mm, 2", M58-mount telecentric lens, length 300.9 mm 2.8xM582"90 mmF11Ø 11.8 mm$1,239.00 Ships in 2-3 weeks
LS-TCL-15060.482x, WD 24 mm, 1/2", C-mount telecentric lens 0.482xC-mount1/2"24±1 mmF19.8Ø 16.6 mm$1,189.00 Ships in 2-3 weeks
LS-TCL-13972.8x, WD 90 mm, 2", M42-mount telecentric lens, length 300.8 mm 2.8xM422"90 mmF11Ø 11.8 mm$1,239.00 Ships in 2-3 weeks
LS-TCL-13992.8x, WD 90 mm, 2", M42-mount telecentric lens, length 300.9 mm 2.8xM422"90 mmF11Ø 11.8 mm$1,239.00 Ships in 2-3 weeks
LS-TCL-13220.095x, WD 318 mm, 1", C-mount telecentric lens 0.095xC-mount1"318 mmF6.5Ø 174.8 mm$4,849.00 Ships in 2-3 weeks
LS-TCL-13630.2514x, WD 328 mm, M58-mount telecentric lens 0.2514xM58Full frame328 mmF6.5Ø 173.3 mm$4,829.00 Ships in 2-3 weeks
LS-TCL-13250.1536x, WD 215 mm, 2", M42-mount telecentric lens 0.1536xM422"215 mmF8Ø 215 mm$5,889.00Quote Ships in 2-3 weeks
LS-TCL-13982.8x, WD 90 mm, 2", M58-mount telecentric lens, length 300.8 mm 2.8xM582"90 mmF11Ø 11.8 mm$1,239.00 Ships in 2-3 weeks
LS-TCL-13330.115x, WD 336 mm, 1.1", C-mount telecentric lens 0.115xC-mount1.1"336 mmF5.1Ø 153 mm$4,329.00 Ships in 2-3 weeks
LS-TCL-13310.135x, WD 288 mm, 1.1", C-mount telecentric lens, length 399.5 mm 0.135xC-mount1.1"288 mmF6.2Ø 136 mm$3,939.00 Ships in 2-3 weeks
LS-TCL-13940.111x, WD 203 mm, 2/3", C-mount telecentric lens 0.111xC-mount2/3"203 mmF5Ø 102.8 mm$3,169.00 Ships in 2-3 weeks
LS-TCL-13200.1559x, WD 300 mm, 1", C-mount telecentric lens 0.1559xC-mount1"300 mmF6.5Ø 106.5 mm$3,249.00 Ships in 2-3 weeks
LS-TCL-13230.075x, WD 220 mm, 1", C-mount telecentric lens, DOF ±30.9@F4.35 0.075xC-mount1"220 mmF4.35Ø 215 mm$5,879.00Quote Ships in 2-3 weeks
LS-TCL-13320.135x, WD 288 mm, 1.1", C-mount telecentric lens, length 389.6 mm 0.135xC-mount1.1"288 mmF6.2Ø 136 mm$3,939.00 Ships in 2-3 weeks
LS-TCL-13470.705x, WD 125 mm, M72-mount telecentric lens 0.705xM72Large format125 mmF7Ø 88 mm$2,919.00 Ships in 2-3 weeks
LS-TCL-13620.462x, WD 378 mm, M58-mount telecentric lens with coaxial light 0.462xM58Full frame378 mmF8Ø 94 mm$3,019.00 Ships in 2-3 weeks
LS-TCL-13520.86x, WD 198 mm, M95-mount telecentric lens 0.86xM95Large format198 mmF13Ø 95.07 mm$2,999.00 Ships in 2-3 weeks
LS-TCL-13600.53x, WD 338 mm, M58-mount telecentric lens with coaxial light 0.53xM58Full frame338 mmF10Ø 82 mm$2,749.00 Ships in 2-3 weeks
LS-TCL-13610.462x, WD 378 mm, M58-mount telecentric lens 0.462xM58Full frame378 mmF8Ø 94 mm$3,019.00 Ships in 2-3 weeks
LS-TCL-13561x, WD 162 mm, M95-mount telecentric lens 1xM95Large format162 mmF8Ø 88 mm$2,939.00 Ships in 2-3 weeks
LS-TCL-13570.96x, WD 150 mm, M95-mount telecentric lens 0.96xM95Large format150 mmF8Ø 91.6 mm$3,019.00 Ships in 2-3 weeks

How to choose a telecentric lens

A telecentric lens keeps the image size of the part constant when the part moves closer or farther within the depth of field, and removes perspective, so edges and holes are measured at their true size. Choose by magnification, sensor and working distance.

1. Magnification = sensor size / field of view

The field of view is the sensor size divided by the magnification. Pick the magnification that fits the part with a small margin, or let the telecentric lens calculator work it out for your sensor and part:

MagnificationField of view, 2/3-inch sensor (8.8 x 6.6 mm)Field of view, 1.1-inch sensor (14.1 x 10.3 mm)
0.1x88 x 66 mm141 x 103 mm
0.2x44 x 33 mm70.5 x 51.5 mm
0.3x29.3 x 22 mm47 x 34.3 mm
0.5x17.6 x 13.2 mm28.2 x 20.6 mm
0.8x11 x 8.3 mm17.6 x 12.9 mm
1x8.8 x 6.6 mm14.1 x 10.3 mm
2x4.4 x 3.3 mm7.1 x 5.2 mm
4x2.2 x 1.7 mm3.5 x 2.6 mm

2. Sensor format

The lens must be rated for the camera's sensor format or larger, or the corners go dark. Larger sensors need larger (and longer) lenses with F-mount or M58 / M72 mounts.

3. Object-side or bi-telecentric

Object-side telecentric lenses keep the magnification constant as the part moves. Bi-telecentric lenses are telecentric on the camera side too, so small focus changes and sensor tilt do not change the size either: the choice for the highest measuring accuracy.

4. Working distance, depth of field, front size

Check the working distance against the space in the machine, and the depth of field against how much the part height varies. The front of the lens must be larger than the field of view - a telecentric lens only sees what fits in front of it.

5. Lighting

For silhouettes, pair the lens with a collimated backlight: parallel light gives the sharpest edges. For surface features use a coaxial light that fits the lens.