12X Telecentric Zoom
The World’s First Parfocal Telecentric Zoom LensThe 12X Telecentric Zoom system allows users to reach a true telecentric condition to within less than 0.3° while maintaining constant perspective and magnification. This means that even if the object is slightly out of focus, the size of the image will not change. The 12X Telecentric Zoom provides field coverage from 50 mm down to 4 mm and the coaxial illumination allows clear viewing, even when working with mirror-like surfaces.
Wide Magnification Range and Ultra Long Working DistanceIn the past, a telecentric lens was defined as having fixed magnification. Not anymore! The NAVITAR 12X Telecentric Zoom lens allows you to zoom in and focus over a wide variety of magnifications with a higher level of accuracy than you ever thought possible. The 12X Telecentric provides adjustable focal lengths over a 0.16X to 1.94X magnification range. You no longer have to be limited by telecentric lenses that only offer fixed magnification. Now you have field coverage from 50 mm down to 4 mm at a 188 mm working distance.
No Need to Change LensesThe easily adjustable field of view and magnification allow our Navitar 12X Telecentric lens to adjust to meet your exact requirements. It’s no longer necessary to change lenses, mix and match base lenses with attachment lenses or recalibrate. One lens, the 12X Telecentric, really does it all!
Wide Range of ApplicationsSpecifically designed for precise dimensional measurement of objects or pattern recognition, the 12X Telecentric Zoom has many applications. It’s ideal for measuring three-dimensional objects with deep features, such as precision parts and electrical connector pins and contacts. It’s also the perfect lens for viewing inconsistently placed parts on a conveyer belt.
12X Telecentric Lens Specifications
Magnification
Telecentric Error (degrees)
Object N.A.
Image N.A
Object Depth of Focus (mm)
Telecentric Error (mm)
Object Size
Approximate MTF (Ip/mm)
Resolvable Features (microns)
1/4" Format
1/3" Format
1/2" Format
0.16
0.05
0.06
-0.03
0.005
0.032
38.8
0.018
0.020
-0.009
25.0
37.3
49.7
15
33
0.23
-0.10
-0.09
-0.18
0.007
0.031
19.4
-0.017
-0.016
-0.030
17.4
26.1
34.8
22
23
0.33
-0.19
-0.27
0.010
0.030
10.3
-0.024
12.1
18.2
24.3
30
17
0.47
-0.23
-0.31
0.013
0.028
6.0
-0.012
8.5
12.8
17.0
39
13
0.67
-0.25
-0.34
0.016
0.024
3.8
-0.008
-0.011
5.9
8.9
11.9
49
10
0.96
-0.36
0.021
2.6
-0.006
4.2
6.3
8.4
59
8
1.36
-0.29
-0.38
0.017
1.8
-0.004
-0.005
2.9
4.4
71
7
1.94
-0.24
0.015
1.3
-0.003
2.1
3.1
4.1
84
6
Distortion < 0.1% for all magnifications. Working Distance = 188 mm for all magnifications.
