Theia SL410A 4K Non-Motorized Lens

Optimize 4K surveillance and monitoring with the Theia SL410A 4K non-motorized varifocal lens. Engineered for security professionals and integrators, this lens delivers crisp, edge-to-edge imaging that lets you fully leverage high-resolution cameras for identification, analytics and machine vision. The SL410A features a 4–10mm varifocal range to precisely adjust the scene framing and a bright f/1.4 maximum aperture for improved low-light performance. Its true 4K optical design supports sensors from 1/2.3" up to 1/1.7" and maintains image clarity across the frame, making it ideal for demanding 4K box cameras and up to 12MP sensors. The compact CS-mount housing is tailored for tight enclosures—such as 4" domes—and simplifies installation in retrofit or new deployments. Choose the Theia SL410A to reduce false alarms, enhance video analytics accuracy, and improve overall monitoring effectiveness. Contact your supplier to specify iris options or order the SL410A for your next security or machine vision project.

• Maximize 4K sensor performance for clearer identification and monitoring across the scene
• Wide 4–10mm varifocal range lets integrators fine-tune field of view for indoor security and surveillance applications
• Fast f/1.4 aperture improves low-light sensitivity and reduces reliance on artificial lighting
• Compact CS-mount design fits small enclosures and 4" domes for discreet installations
• Consistent edge-to-edge sharpness for high-resolution analytics and machine vision on up to 12MP cameras