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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.
|TL1250P R4 CS||TL1250P R5 CS||TL1250P R6 CS||TL1250P R6 25||TL1250P-940C R6||
|Motorized Focus / Zoom||✓||✓||✓||✓||✓||✓|
|Focus / Zoom Limit Indicator (Photo Interrupter)||-||✓||✓||✓||✓||✓|
|IR Cut Filter||✓||✓||✓||✓||✓||✓|
|Filter Switch||visible / clear||-||visible / clear||visible / clear||-||visible / 940nm|
|Mount Type||CS-mount||CS-mount||CS-mount||D25 Board mount||CS-mount||CS-mount|
|TL1250A R5 CS||TL1250A R6 CS||TL1250A-940V R6|
|Motorized Focus / Zoom||✓||✓||✓|
|Focus / Zoom Limit Indicator (Photo Interrupter)||✓||✓||✓|
|Iris Type||DC autoiris||DC autoiris||DC autoiris|
|IR Cut Filter||✓||✓||✓|
|Filter Switch||-||visible / clear||visible / 940nm|
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.
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:
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.