Motorized 4k Telephoto: TL1250 -N

We are retiring 1250 -R versions in mid 2023 and replacing with 1250 -N versions. 1250-N versions have slightly larger focus/zoom motors, but the optics design is identical to the -R version.

Ultra high resolution, long distance telephoto lens
12 - 50 mm focal range
True 4K, 12 megapixel resolution
Fully motorized with zoom, focus, iris. Some models include IR cut, and limit switches
IR corrected for Day/Night
For 1/1.7" sensor sizes or smaller
Compact design to fit into domes as small as 4” mini-dome size

Motor Control Board Accessory
Motor Temperature Calculator

Lens Calculator Lens Selector Request a Sample Request a Quote CAD Downloads

Overview

Other versions with different feature combinations are possible; please inquire. Contact us

	TL1250P N3 CS	TL1250P N4 CS	TL1250P N5 CS	TL1250P N6 CS	TL1250P N6 25
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	-	visible / clear	visible / clear
Mount Type	CS-mount	CS-mount	CS-mount	CS-mount	D25 Board mount

	TL1250A-940V N6 CS	TL1250P-940V N6 CS	TL1250P-940C N6 CS	TL1250P-850V N6 CS	TL1250P-850C N6 CS
Motorized Focus / Zoom	✓	✓	✓	✓	✓
Focus / Zoom Limit Indicator (Photo Interrupter)	✓	✓	✓	✓	✓
Iris Type	DC autoiris	P-iris	P-iris	P-iris	P-iris
Filter Switch	visible / 940nm	visible / 940nm	940nm / clear	visible / 850nm	850nm / clear
Mount Type	CS-mount	CS-mount	CS-mount	CS-mount	CS-mount

Additional integrated bandpass and longpass filter options may be possible; please inquire. Contact Us

Theia offers a downloadable Motor Temperature Calculator that estimates the temperature of focus and zoom motors after cycles of running and cool down.

For ease of evaluation of Theia’s motorized lenses we offer a lens motor control board. This can be controlled by USB, I2C, and UART connections. You will find more information about the Motor Control Board at the link shown.

Theia's TL1250 lens is designed to be very compact and better image performance compared to competitive products. Despite the long focal telephoto focal length, this lens is designed for small 4" dome cameras and bullet cameras.

Similar to Theia's other lenses, the TL1250 series is a high quality lens designed to allow the installer to take full advantage of the high resolution of 4K resolution, HD, and multi megapixel cameras. The lens can be used on cameras up to 12 megapixel resolution giving a crisp image from edge to edge.

The non-motorized version of the lens is the SL1250.