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

1321-1344 of 2965 models

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LS-TCL-2763Bi-telecentric lens, 0.126x, WD 330 mm, 4/3", F or Other-mount 0.126xF-mount4/3"330±5 mmØ 190 mm-$4,329.00 Ships in 2-3 weeks
LS-TCL-2762Bi-telecentric lens, 0.141x, WD 318 mm, 4/3", M58 or other-mount 0.141xM584/3"318±5 mmØ 170 mm-$3,889.00 Ships in 2-3 weeks
LS-TCL-2759Bi-telecentric lens, 0.2x, WD 280 mm, 4/3", F or Other-mount 0.200xF-mount4/3"280±5 mmØ 120 mm-$2,969.00 Ships in 2-3 weeks
LS-TCL-2754Bi-telecentric lens, 0.3x, WD 228 mm, 4/3", C or F-mount 0.300xC-mount4/3"228±4 mmØ 80 mm-$2,659.00 Ships in 2-3 weeks
LS-TCL-2760Bi-telecentric lens, 0.177x, WD 288 mm, 4/3", M58 or other-mount 0.177xM584/3"288±5 mmØ 136 mm-$3,179.00 Ships in 2-3 weeks
LS-TCL-2758Bi-telecentric lens, 0.218x, WD 263 mm, 4/3", M58 or other-mount 0.218xM584/3"263±4 mmØ 110 mm-$2,769.00 Ships in 2-3 weeks
LS-TCL-2753Bi-telecentric lens, 0.333x, WD 178 mm, 4/3", F or Other-mount 0.333xF-mount4/3"178±3 mmØ 72 mm-$2,069.00 Ships in 2-3 weeks
LS-TCL-2751Bi-telecentric lens, C or F-mount -C-mount---48.4x36.3 mm$1,929.00 Ships in 2-3 weeks
LS-TCL-2757Bi-telecentric lens, 0.24x, WD 258 mm, 4/3", F or Other-mount 0.240xF-mount4/3"258±4 mmØ 100 mm-$2,599.00 Ships in 2-3 weeks
LS-TCL-2756Bi-telecentric lens, 0.267x, WD 208 mm, 4/3", F or Other-mount 0.267xF-mount4/3"208±3 mmØ 90 mm-$2,389.00 Ships in 2-3 weeks
LS-TCL-2755Bi-telecentric lens, 0.3x, WD 228 mm, 4/3", M58 or Other-mount 0.300xM584/3"228±4 mmØ 80 mm-$2,229.00 Ships in 2-3 weeks
LS-TCL-2750Bi-telecentric lens, 0.429x, WD 138 mm, 4/3", F or Other-mount 0.429xF-mount4/3"138±3 mmØ 56 mm-$1,789.00 Ships in 2-3 weeks
LS-TCL-2752Bi-telecentric lens, 0.375x, WD 158 mm, 4/3", M58 or Other-mount 0.375xM584/3"158±3 mmØ 64 mm-$1,929.00 Ships in 2-3 weeks
LS-TCL-2749Bi-telecentric lens, 0.5x, WD 138 mm, 4/3", C or F-mount 0.500xC-mount4/3"138±3 mmØ 48 mm-$1,909.00 Ships in 2-3 weeks
LS-TCL-2748Bi-telecentric lens, 0.5x, WD 128 mm, 4/3", F or Other-mount 0.500xF-mount4/3"128±3 mmØ 48 mm-$1,639.00 Ships in 2-3 weeks
LS-TCL-2746Bi-telecentric lens, 0.67x, WD 110 mm, 4/3", F or Other-mount 0.670xF-mount4/3"110±2 mmØ 36 mm-$1,429.00 Ships in 2-3 weeks
LS-TCL-2747Bi-telecentric lens, 0.571x, WD 118 mm, 4/3", F or Other-mount 0.571xF-mount4/3"118±3 mmØ 42 mm-$1,539.00 Ships in 2-3 weeks
LS-TCL-2744Bi-telecentric lens for 35 mm Full cameras, 0.147x, WD 465 mm, F or Other-mount 0.147xF-mountFull frame465±6 mmØ 300 mm-$8,699.00Quote Ships in 2-3 weeks
LS-TCL-2727Bi-telecentric lens for 35 mm Full cameras, 0.92x, WD 138 mm, F or Other-mount 0.920xF-mountFull frame138±3 mmØ 48 mm-$1,949.00 Ships in 2-3 weeks
LS-TCL-2738Bi-telecentric lens for 35 mm Full cameras, 0.367x, WD 280 mm, F or Other-mount 0.367xF-mountFull frame280±5 mmØ 120 mm-$3,629.00 Ships in 2-3 weeks
LS-TCL-2745Bi-telecentric lens, 0.923x, WD 73 mm, 4/3", C or F-mount 0.923xC-mount4/3"73±1 mmØ 26 mm-$1,409.00 Ships in 2-3 weeks
LS-TCL-2734Bi-telecentric lens for 35 mm Full cameras, 0.486x, WD 208 mm, F-mount 0.489xF-mountFull frame208±2 mmØ 90 mm-$2,449.00 Ships in 2-3 weeks
LS-TCL-2742Bi-telecentric lens for 35 mm Full cameras, 0.23x, WD 330 mm, F or Other-mount 0.230xF-mountFull frame330±5 mmØ 190 mm-$5,379.00Quote Ships in 2-3 weeks
LS-TCL-2716Bi-telecentric lens for 2/3" cameras, 0.115x, WD 238 mm, C-mount 0.115xC-mount2/3"238±3 mmØ 100 mm-$2,529.00 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.