AXIS 5503-161 Theia Linear Optical Technology Varifocal Ultra-Wide Field of View, 1.8-3mm Lens, White

Deliver broad, distortion-free coverage for critical security and monitoring applications with the AXIS 5503-161 varifocal lens from Axis Communications. Purpose-built for surveillance cameras, this lens lets you optimize the scene with a 1.8–3.0 mm focal range while maintaining high edge resolution thanks to Theia’s patented Linear Optical Technology®. The fast f/1.8 aperture improves performance in low-light and challenging lighting conditions, and the DC-iris ensures stable exposure when used with professional CCTV and IP cameras. Designed to take full advantage of HDTV and multi-megapixel sensors, the rectilinear design minimizes barrel distortion so forensic details remain sharp across the frame. Easy to mount with a CS interface and NDAA-compliant, the AXIS 5503-161 is ideal for perimeter security, retail monitoring, transportation hubs, and large-area surveillance where wide coverage and reliable detection matter. Upgrade your security camera deployments with this high-performance varifocal lens—order now to expand field-of-view and improve overall monitoring effectiveness.

• Maximize coverage with an ultra-wide, low-distortion field of view to reduce blind spots and improve detection probability
• Flexible 1.8–3.0 mm varifocal range lets integrators fine-tune framing for different surveillance scenarios
• Fast f/1.8 aperture improves low-light performance and yields clearer images for night and indoor monitoring
• Linear Optical Technology preserves edge-to-edge resolution so megapixel cameras capture usable detail across the scene
• CS-mount and DC-iris design enables straightforward integration and consistent exposure control in professional security installs