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
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 | 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.
Downloads
Theia TL1250P-IQ N6 CS Lens Specification
Theia TL1250P-IQ 850C N6 lens specification
Theia TL1250P-IQ 940C N6 Specification
Theia TL1250P-IQ N5 specification
THEIA Motorized Lens Specification
THEIA Certificate of Conformance
THEIA CE UK RoHS III REACH Declaration of Conformity
THEIA NDAA Compliance Statement
Accessories
Please select a specific lens below to ensure proper accessory options.
Lenses
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
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
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
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