Theia's motorized 4K telephoto: TL1250

Theia TL1250 telephoto

Theia's true 4K resolution telephoto lens for long distance security surveillance and license plate recognition (LPR) applications.  With varifocal length from 12-50mm and superior imaging performance, the TL1250 is designed for image sensors from 1/2.3" up to 1/1.7".   The lens includes motors for remote operation of focus and zoom, IR cut filter, and focus and zoom limit switches.  The lens is designed to be very compact so it can be used in small 4" domes and bullet style cameras.  

Technical specification for TL1250
  long form (v.181206)

View the example telephoto images

 TL1250A R6TL1250P R6
Iris typeDC autoirisP-iris
IR cut filterYes
Motorized focus/zoomYes
Focus/zoom limit indicatorYes, photo interrupter
Focal length12mm - 50mm
F/#F/1.8 to closed
ResolutionTrue 4K resolution, 12 megapixels
Mount typeCS-mount or D25 board mount

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. Find out more information at this page.

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.  

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

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.  

TL1250 drawing

TL1250A R6/
TL1250P R6
Motorized zoom/focus, iris, IR cut and limit switches
3D CAD file (step 5.0MB)

TL1250A R3/
TL1250P R3
Motorized zoom/focus and iris
    3D CAD file (step 3.0MB) 

TL1250A R6 D25/
TL1250P R6 D25
Motorized zoom/focus, iris, IR cut and limit switches
    3D CAD file (step 4.1MB) 

TL1250A R4 D25/
TL1250P R4 D25
Motorized zoom/focus, iris, and IR cut
    3D CAD file (step 4.0MB)