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

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Telecentric lenses

289-312 of 2965 models

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LS-TCL-08650.182x bi-telecentric lens, WD 410 mm 0.182xM58Full frame410±6 mmdia. 240 mm-$4,495.00 Ships in 3-4 weeks
LS-TCL-08670.202x bi-telecentric lens, WD 372 mm 0.202xM58Full frame372±5 mmdia. 216 mmF10.4$4,495.00 Ships in 3-4 weeks
LS-TCL-08920.311x bi-telecentric lens, WD 330 mm 0.311xM72Large format330±5 mmdia. 190 mmF13.9$3,850.00 Ships in 3-4 weeks
LS-TCL-08820.273x bi-telecentric lens, WD 372 mm 0.273xM72Large format372±5 mmdia. 216 mmF8.7$4,000.00 Ships in 3-4 weeks
LS-TCL-08860.291x bi-telecentric lens, WD 300 mm 0.291xF-mountFull frame300±5 mmdia. 150 mmF14.6$4,070.00 Ships in 3-4 weeks
LS-TCL-09000.363x bi-telecentric lens, WD 273 mm 0.363xF-mountFull frame273±5 mmdia. 120 mmF8.5$3,530.00 Ships in 3-4 weeks
LS-TCL-08730.229x bi-telecentric lens, WD 330 mm 0.229xF-mountFull frame330±5 mmdia. 190 mmF6$3,690.00 Ships in 3-4 weeks
LS-TCL-08770.26x bi-telecentric lens, WD 300 mm 0.26xF-mountAPS-H300±5 mm-F13.1$3,960.00 Ships in 3-4 weeks
LS-TCL-08720.229x bi-telecentric lens, WD 318 mm 0.229xM42, M58APS-H318±5 mm-F6.5$3,850.00 Ships in 3-4 weeks
LS-TCL-08960.347x bi-telecentric lens, WD 318 mm 0.347xM72Large format318±5 mmdia. 170 mmF8.7$3,750.00 Ships in 3-4 weeks
LS-TCL-09020.393x bi-telecentric lens, WD 300 mm 0.393xM72Large format300±5 mmdia. 150 mmF19.8$3,450.00 Ships in 3-4 weeks
LS-TCL-08850.287x bi-telecentric lens, WD 288 mm 0.287xM58APS-H288±5 mmdia. 136 mm-$3,520.00 Ships in 3-4 weeks
LS-TCL-09100.484x bi-telecentric lens, WD 208 mm 0.484xM58Full frame208±3 mmdia. 90 mmF11.4$3,200.00 Ships in 3-4 weeks
LS-TCL-09250.606x bi-telecentric lens, WD 178 mm 0.606xM58Full frame178±3 mmdia. 72 mmF12.8$3,160.00 Ships in 3-4 weeks
LS-TCL-09671x bi-telecentric lens, WD 162 mm, M90 1.000xM90Large format162±3 mmdia. 88 mmF7.0$3,080.00 Ships in 3-4 weeks
LS-TCL-09340.705x bi-telecentric lens, WD 125 mm 0.705xM72Large format125±3 mmdia. 88 mmF7.0$3,500.00 Ships in 3-4 weeks
LS-TCL-09641x bi-telecentric lens, WD 102 mm 1.000xM72Large format102±2 mmdia. 62 mmF7.0$3,000.00 Ships in 3-4 weeks
LS-TCL-09570.96x bi-telecentric lens, WD 150 mm, M90 0.960xM90Large format150±3 mmdia. 91.6 mm-$3,200.00 Ships in 3-4 weeks
LS-TCL-08950.325x bi-telecentric lens, WD 273 mm 0.325xM42, M58APS-H273±5 mm-F7.6$3,000.00 Ships in 3-4 weeks
LS-TCL-09721.11x bi-telecentric lens, WD 150 mm, M90 1.110xM90Large format150±3 mmdia. 79.2 mmF7.0$3,025.00 Ships in 3-4 weeks
LS-TCL-09731.173x bi-telecentric lens, WD 152 mm, M90 1.173xM90Large format152±3 mmdia. 75 mmF7.0$3,000.00 Ships in 3-4 weeks
LS-TCL-09741.419x bi-telecentric lens, WD 123 mm, M90 1.419xM90Large format123±3 mmdia. 62 mmF7.0$2,860.00 Ships in 3-4 weeks
LS-TCL-08760.256x bi-telecentric lens, WD 318 mm 0.256xM58Full frame318±5 mmdia. 170 mmF6.0$3,000.00 Ships in 3-4 weeks
LS-TCL-09240.59x bi-telecentric lens, WD 238 mm 0.59xM72Large format238±3 mmdia. 100 mmF13.9$2,800.00 Ships in 3-4 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.