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

1993-2016 of 2965 models

Products

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LS-TCL-2401Standard 5 MP telecentric lens, 1.5x, WD 40 mm, 1/1.8", C-mount, with coaxial light 1.5xC-mount1/1.8"40 mm1:12.55 MP$1,359.00 Ships in 2-3 weeks
LS-TCL-2406Standard 5 MP telecentric lens, 1.5x, WD 40 mm, 1/1.8", C-mount 1.5xC-mount1/1.8"40 mm1:12.55 MP$1,359.00 Ships in 2-3 weeks
LS-TCL-2407Standard 5 MP telecentric lens, 2x, WD 40 mm, 1/1.8", C-mount 2xC-mount1/1.8"40 mm1:6.55 MP$1,239.00 Ships in 2-3 weeks
LS-TCL-1315Vari-magnification telecentric lens, 0.5x, WD 65 mm, 2/3", C-mount, manual focus 0.5X-2XC-mount2/3"65 mm-8 μm$1,679.00 Ships in 2-3 weeks
LS-TCL-0815Standard telecentric lens, 0.5x, WD 110 mm, 2/3", C-mount 0.5xC-mount2/3"110 mmF9.312 μm$1,309.00 Ships in 2-3 weeks
LS-TCL-0825Standard telecentric lens, 0.5x, WD 65 mm, 2/3", C-mount 0.5xC-mount2/3"65 mmF9.512.8 μm$1,309.00 Ships in 2-3 weeks
LS-TCL-2397Telecentric zoom lens for 2/3" sensor, WD 120 mm, C-mount 0-0.5xC-mount2/3"120 mm to ∞F2.85 mega-pixel$1,679.00 Ships in 2-3 weeks
LS-TCL-0826Standard telecentric lens, 0.5x, WD 65 mm, 2/3", C-mount 0.5xC-mount2/3"65 mmF9.512.8 μm$1,309.00 Ships in 2-3 weeks
LS-TCL-1316Vari-magnification telecentric lens, 0.5x, WD 65 mm, 2/3", C-mount, motorized focus 0.5X-2XC-mount2/3"65 mm-8 μm$1,679.00 Ships in 2-3 weeks
LS-TCL-0830Standard telecentric lens, 0.8x, WD 65 mm, 2/3", C-mount 0.8xC-mount2/3"65 mmF9.58.4 μm$1,199.00 Ships in 2-3 weeks
LS-TCL-0827Standard telecentric lens, 0.75x, WD 65 mm, 2/3", C-mount 0.75xC-mount2/3"65 mmF9.57 μm$1,139.00 Ships in 2-3 weeks
LS-TCL-0816Standard telecentric lens, 0.5x, WD 110 mm, 2/3", C-mount 0.5xC-mount2/3"110 mmF9.312 μm$1,309.00 Ships in 2-3 weeks
LS-TCL-0828Standard telecentric lens, 0.75x, WD 65 mm, 2/3", C-mount 0.75xC-mount2/3"65 mmF9.57 μm$1,139.00 Ships in 2-3 weeks
LS-TCL-0829Standard telecentric lens, 0.8x, WD 65 mm, 2/3", C-mount 0.8xC-mount2/3"65 mmF9.58.4 μm$1,199.00 Ships in 2-3 weeks
LS-TCL-0818Standard telecentric lens, 1x, WD 110 mm, 2/3", C-mount 1xC-mount2/3"110 mmF117.4 μm$1,239.00 Ships in 2-3 weeks
LS-TCL-0831Standard telecentric lens, 1x, WD 65 mm, 2/3", C-mount 1xC-mount2/3"65 mmF117.5 μm$1,239.00 Ships in 2-3 weeks
LS-TCL-0819Standard telecentric lens, 2x, WD 110 mm, 2/3", C-mount 2xC-mount2/3"110 mmF13.64.5 μm$1,239.00 Ships in 2-3 weeks
LS-TCL-0832Standard telecentric lens, 1x, WD 65 mm, 2/3", C-mount 1xC-mount2/3"65 mmF117.5 μm$1,239.00 Ships in 2-3 weeks
LS-TCL-0817Standard telecentric lens, 1x, WD 110 mm, 2/3", C-mount 1xC-mount2/3"110 mmF117.4 μm$1,239.00 Ships in 2-3 weeks
LS-TCL-0834Standard telecentric lens, 1.5x, WD 65 mm, 2/3", C-mount 1.5xC-mount2/3"65 mmF125.4 μm$1,239.00 Ships in 2-3 weeks
LS-TCL-0824Standard telecentric lens, 6x, WD 110 mm, 2/3", C-mount 6xC-mount2/3"110 mmF354 μm$849.00 Ships in 2-3 weeks
LS-TCL-0836Standard telecentric lens, 2x, WD 65 mm, 2/3", C-mount 2xC-mount2/3"65 mmF13.54.5 μm$1,239.00 Ships in 2-3 weeks
LS-TCL-0833Standard telecentric lens, 1.5x, WD 65 mm, 2/3", C-mount 1.5xC-mount2/3"65 mmF125.4 μm$1,239.00 Ships in 2-3 weeks
LS-TCL-0820Standard telecentric lens, 2x, WD 110 mm, 2/3", C-mount 2xC-mount2/3"110 mmF13.64.5 μm$1,239.00 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.