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American thea sl1250a 4K HD telephoto lens, CS interface distortion free and deformation free industrial zoom lens true 4K resolution, 12 MP




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 SL1250 is designed for image sensors from 1/2.3" up to 1/1.7". The lens is designed to be very compact so it can be used in small enclosures such as 4" domes.
Technical specification for SL1250 (v.160113)
View the example telephoto images
Theia SL1250 telephoto
SL1250A SL1250P SL1250M
Iris type DC autoiris P-iris Manual iris
Focal length 12mm - 50mm varifocal
F/# F/1.8 to closed
Resolution true 4K resolution, 12 MP
IR correction Yes
Mount type CS-mount
Image sensor size 1/2.3" up to 1/1.7"
Theia's SL1250 lens is designed to be very compact to fit into small spaces such as 4" domes. This lens is designed for use on the new 4K box cameras for security and machine vision applications such as long distance fence line monitoring, license plate recognition (LPR) and other long distance security applications.
The SL1250 versions are available with motorized or manual iris and CS mount whereas the sister TL1250 versions include motorized zoom and focus, photo interrupter limit switches, and board mount options.
Similar to Theia's other lenses, the SL1250 series is a high quality lens designed to allow the installer to take full advantage of the high resolution of 4K, HD, and multi megapixel cameras. The lens can be used on cameras up to 12 megapixel resolution (true 4K) giving a crisp image from edge to edge.
Theia SL1250A lens
SL1250A/SL1250P drawing
3D CAD (step 2.3MB)
Theia SL1250M lens
SL410M drawin
3D CAD (step 2.6MB)
Lens owner's manual

Sales telephone (same number of wechat): 13428785305 QQ: 2461903042