IQ Lens™ System: TL1250P-IQ

  • Ultra high resolution, long distance telephoto lens
  • 12 - 50 mm focal range
  • True 4K, 12 megapixel, 300 lp/mm resolution
  • NIR corrected from 430 to 940nm for Day/Night
  • Motorized zoom, focus, and iris with optional IR filters and home position limits
  • Average measured zoom/focus tracking curve and focal length
  • Design data for distortion, aperture and relative illumination
  • Software application and GUI for converting engineering units to motor positions
  • Compact, lightweight design to fit into small enclosures and tight spaces
  • For 1/1.7" sensor sizes or smaller

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Theia Lens TL1250P Motorized Telephoto
TL1250P-IQ N6 CS

Overview

Available calibration data

The following calibration data frames are provided in a JSON format data file. The calibration curves are monitored from lens lot to lot to verify the continued accuracy of the curves. When a Theia IQ lens™ is purchased, the most recent average data file is provided (available from online download).

Data Frame Y axis X axis
Focus / Zoom tracking* Focus motor step Zoom motor step
Focal length conversion* Zoom motor step Focal length [mm]
Distortion^ Object angle [deg] Image height [mm]
Relative illumination^ Illumination [%] Image height [mm]
Aperture^ Aperture [1/(2*F/#)] Iris motor step
Iris diameter^ Iris short diameter Iris motor step

*Average measured data
^Design data

Learn about Theia’s family of individually measured Calibrated lenses, here.

Calibrated lens back focal length (BFL) calibration procedure

Due to the tolerances in the camera sensor and mount positions, there is a difference between the lens best focus position and the calibrated focus position. To mitigate this, the lens focus position should be set visually and compared to the calibrated focus motor step from the data file at several focal lengths. The Back Focal Length (BFL) calibration procedure is described in application note AN004. Depending on the application, a fine focus adjustment may be required for optimal focus.

TL1250P-IQ N5 CS Selected:
TL1250P-IQ N6 CS
TL1250P-IQ 850C N6 CS TL1250P-IQ 940C N6 CS TL1250P-IQ 940V N6 CS
Motorized Focus / Zoom
Focus / Zoom Limit Indicator (Photo Interrupter)
Iris Type P-iris P-iris P-iris P-iris P-iris
Filter Switch - visible / clear 850nm / clear 940nm / clear visible / 940nm
Mount Type CS-mount CS-mount CS-mount CS-mount CS-mount
Calibration Type Running Average Running Average Running Average Running Average Running Average

Additional integrated bandpass and longpass filter options may be possible. Other lens versions with different feature combinations are also possible. For more information on these topics, please inquire here: Contact Us

The TL1250P-IQ lenses are compatible with the MCR IQ Motor Control Board.

CAD Data

Accessories

FMT-3555

FMT3555+on+ML610.jpg

Filter Mount Accessory

This filter mount can be added to the 410 series lenses to allow an external filter (such as band-pass or polarizing filter) to be added to the system. The filter mount works with lenses with 35mm front barrel diameter and is held in place with 3 sharp point set screws. It will accept filters with M55x0.75 threads. Filters are not provided by Theia Technologies.

Part FMT-3555: High performance aluminum filter mount for use with lenses:


MCR IQ™ 400

theia-mcr-iq-group

For ease of evaluating Theia’s motorized lenses Theia offers a motor control board. This board allows the user to control zoom, focus, P-iris, and IR cut filters (there is no control for DC auto iris lenses). For evaluation, we offer a Windows based test program to communicate over USB. You may also communicate over i2c or UART from within your own program. Details are covered in the instruction manual from the link below, as well as CAD model and drawing of the board.


MCR IQ™ 600

theia-mcr-iq-group

For ease of evaluating Theia’s motorized lenses Theia offers a motor control board. This board allows the user to control zoom, focus, P-iris, and IR cut filters (there is no control for DC auto iris lenses). For evaluation, we offer a Windows based test program to communicate over USB. You may also communicate over i2c or UART from within your own program. Details are covered in the instruction manual from the link below, as well as CAD model and drawing of the board.


Lenses

Theia Lens TL1250P Motorized Telephoto

TL1250P-IQ 850C N6 CS

12-50mm, 4k 12mpx, Day/Night, 1/1.7", P-iris, motorized zoom & focus, Visible and IR transmitting, PI motor stops, CS mount telephoto lens
Theia Lens TL1250P Motorized Telephoto

TL1250P-IQ 940C N6 CS

12-50mm, 4k 12mpx, Day/Night, 1/1.7", P-iris, motorized zoom & focus, Visible and IR transmitting, PI motor stops, CS mount telephoto lens
Theia Lens TL1250P Motorized Telephoto

TL1250P-IQ 940V N6 CS

12-50mm, 4k 12mpx, Day/Night, 1/1.7", P-iris, motorized zoom & focus, Visible and IR transmitting, PI motor stops, CS mount telephoto lens
Theia Lens TL1250P Motorized Telephoto

TL1250P-IQ N5 CS

12-50mm, 4k 12mpx, Day/Night, 1/1.7", P-iris, motorized zoom & focus, PI motor stops, CS mount telephoto lens
Theia Lens TL1250P Motorized Telephoto

Selected: TL1250P-IQ N6 CS

12-50mm, 4k 12mpx, Day/Night, 1/1.7", P-iris, motorized zoom & focus, IR cut, PI motor stops, CS mount telephoto lens