Axis Communications 5503-161 Cs Mount Varifocal Lens 1.8-3mm

Product Description

The AXIS COMMUNICATIONS 5503-161 is a CS-mount varifocal lens designed for megapixel security camera applications. With a focal length range of 1.8 to 3mm, it provides a wide field of view suited to close-range surveillance and monitoring installations. The varifocal design allows technicians to adjust focal length and focus independently during installation, making it adaptable to a variety of mounting positions and scene depths. This lens is intended for professional installation by security integrators and CCTV technicians working with CS-mount compatible cameras.

This lens is used in commercial and residential video surveillance systems where a compact, wide-angle varifocal optic is required. The CS-mount interface is a standard format found across a broad range of IP and analog camera bodies. The 1.8 to 3mm focal length range is particularly useful in tight interior spaces such as lobbies, hallways, retail floors, and entry points where wide coverage is needed at short to medium distances. Its megapixel-class optical construction supports high-resolution imaging sensors.

Key Features

• Varifocal design with 1.8 to 3mm focal length range for flexible field-of-view adjustment
• CS-mount interface compatible with standard CS-mount camera bodies
• Megapixel-class optics suitable for high-resolution imaging sensors
• Compact form factor suited for indoor surveillance installations
• Sold individually as a single unit

Compatibility

Designed as an OEM-style replacement or upgrade lens for CS-mount megapixel security cameras requiring a varifocal wide-angle optic in the 1.8 to 3mm range.

Installation Notes

Installation should be performed by a qualified security integrator or CCTV technician familiar with CS-mount optics. Power down the camera system before removing or mounting any lens to avoid sensor damage. Ensure the CS-mount flange depth is correctly set on the camera body before securing the lens, and verify focus and focal length adjustments under live image conditions before finalizing the installation.