Opto Engineering® - 20 years
Home Optics Telecentric lenses
TCZEL series
0.18 - 0.55 x
Focus tunable

Key advantages

Maximum versatility
Possibility to adjust both the magnification and the working distance.

Reduced wear
No moving optical mechanical parts.

Faster than traditional zooms
Optotune liquid lens technology allows to operate in a few milliseconds.

Discover more

Working principle

Application examples

Please wait
Unable to process your request
Back to models
Reset Filters
Select 2 or more models to compare specs
Start comparing
Clear selection

Last update 26 Mar 2024

Expand table


  1. Working distance: distance between the front end of the mechanics and the object, reported at nominal range of the liquid lenses; maximum excursion may be larger.
  2. Working f-number (wf/N): the real f-number of a lens in operating conditions.
  3. Maximum angle between chief rays and optical axis on the object side.
  4. Percent deviation of the real image compared to an ideal, undistorted image.
  5. At the borders of the field depth the image can be still used for measurement but, to get a perfectly sharp image, only half of the nominal field depth should be considered. Pixel size used for calculation is 3.45 μm.
  6. Object side, calculated with the Rayleigh criterion with λ= 520 nm
  7. Typical at 30°C, 0 to ±250 mA step.
  8. Indicates the availability of an integrated camera phase adjustment feature.
  9. Measured from the front end of the mechanics to the camera flange.

Additional notes

  1. Performances guaranteed when used with vertical optical axis; when used with horizontal optical axis performances drop due to gravity induced aberrations of the liquid lens.

Ordering information

Hirose cables and liquid lens controller sold separately.
Back to models

Technical documents

TCZEL23056 MAG and WD calculation sheet
Back focal adjustment
Product user guide