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Home Optics Telecentric lenses TC4MHR series
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Main optical specifications
Magnification (x) 0.314
Image circle diameter (mm) 21.6
Max sensor size 4/3″
Object field of view
1" (mm × mm) 45.19 x 23.92
1.1″ (mm × mm) 45.10 x 33.03
4/3″ (1) (mm × mm) 60.29 x 33.79
Advanced optical specifications
Working distance (2) (mm) 157.8
Working ƒ/N (3) 16
Telecentricity typical (max) (4) (deg) <0.05 (0.10)
Distortion typical (max) (5) (%) <0.04 (0.10)
Depth of field (6) (mm) 8.40
Resolution (7) (μm) 32
Mechanical specifications
Mount C
Phase adjustment (8) Yes
Length (9) (mm) 280.7
Front diameter (mm) 80
Mass (g) 1081

Last update 27 Mar 2023



  1. With IMX387 (21.7 mm diagonal) sensors, the FOV may show some vignetting at the image corners.
  2. Working distance: distance between the front end of the mechanics and the object. Set this distance within +/- 3% of the nominal value for maximum resolution and minimum distortion.
  3. Working f-number (wf/N): the real f-number of a lens in operating conditions.
  4. Maximum angle between chief rays and optical axis on the object side. Typical (average production) values and maximum (guaranteed) values are listed.
  5. Percent deviation of the real image compared to an ideal, undistorted image. Typical (average production) values and maximum (guaranteed) values are listed.
  6. At the borders of the field depth the image can be still used for measurement but, to get a very sharp image, only half of the nominal field depth should be considered. Pixel size used for calculation is 3.45 μm.
  7. Object side, calculated with the Rayleigh criterion with λ= 520 nm
  8. Indicates the availability of an integrated camera phase adjustment feature.
  9. Measured from the front end of the mechanics to the camera flange.

Ordering information

It's easy to select the right lens for your application: our models are coded as TC4MHRyyy-x where yyy refers to the width of the object FOV in mm and -x refers to the mount option:
-C for C-mount
-F for F-mount
-E for M42X1 mount (flange distance FD 16 mm).
For example, TC4MHR064-F for a F-mount TC4MHR064 lens.
Customized mounts are also available upon request.
All product specifications and data are subject to change without notice to improve reliability, functionality, design or other. Photos and pictures are for illustration purposes only.

Technical documents

Product user guide
Back focal adjustment


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