Calibrated Motorized 4K Lens: TL410P-CAL / ML410P-CAL

Ultra-high resolution for 4K cameras, up to 12.4 megapixel, 300lp/mm for 1.55µ pixels
4 - 10mm focal range
P-iris (stepper motor) for precise aperture control
NIR corrected for Day/Night cameras and multi-spectral imaging
Fully motorized with zoom, focus, iris, optional IR filters, and limit switches
Calibrated focus/zoom curve, focal length, iris, distortion and other data sets
Optional MCR IQ™ motor control board for easy integration (sold separately)
Compact, lightweight design
CS mount (TL410), C mount (ML410)
For 1/1.7" sensor sizes or smaller

Average calibrated version TL410P-IQ / ML410P-IQ
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NIR Bandpass and Longpass filter options
TL410P-CAL / ML410P-CAL Specification

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Overview

Available calibration data

The following calibration data frames are provided in a JSON format data file.

Data Frame	Y axis	X axis	Source
Focus / Zoom tracking	Focus motor step	Zoom motor step	Calibrated for each lens
Focal length conversion	Zoom motor step	Focal length [mm]	Calibrated for each lens
Distortion	Object angle [deg]	Image height [mm]	Design data
Relative illumination	Illumination [%]	Image height [mm]	Design data
Aperture	Aperture	Iris motor step	Design data
Iris diameter	Iris short diameter	Iris motor step	Design data

Learn about Theia’s family of average 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.

	TL410P-CAL R6 CS	ML410P-CAL R6 C
Motorized Focus / Zoom	✓	✓
Focus / Zoom Limit Indicator (Photo Interrupter)	✓	✓
Iris Type	P-iris	P-iris
*Filter Switch	visible / clear	visible / clear
Mount Type	CS mount	C mount
Calibration Type	Individual per lens	Individual per lens

*Additional integrated bandpass and longpass filter options may be possible. Other lens versions with different feature combinations are also possible.

These lenses are compatible with the MCR IQ Motor Control Board.

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