General
Focus	12,5-50 mm
Glare rating	f/1.4
Zoom factor	4 way
Mount	CS
Compatibility	Axis Q1602/E, Q1604/E, Q1614/E, P1355/E, P1357/E
IR correction
P-Iris

The Axis lens with manufacturer number 5800-801 is a varifocal, IR-corrected telephoto lens in CS-mount format, designed for use with network cameras from the Axis product family. It features an optical zoom factor of 4x and a focal length range from 12.5 mm to 50 mm, with a maximum aperture of f/1.4. The lens is specifically designed for use with cameras such as the Axis Q1602/E, Q1604/E, Q1614/E, P1355/E, and P1357/E, with compatibility confirmed by the manufacturer. The integrated P-Iris function enables precise, motorized aperture control that adapts to lighting conditions to ensure consistent image quality.

Varifocal lens with 4x optical zoom
The lens offers a variable focal length range from 12.5 mm to 50 mm, enabling flexible adjustment of the field of view. The 4x optical zoom allows zooming in closer to the subject when needed, without compromising image quality. The maximum aperture of f/1.4 provides high light transmission, which is particularly beneficial in low-light conditions or during twilight. The IR correction ensures clear and sharp image reproduction even when using infrared illumination, as commonly used in day/night cameras.

P-Iris control for precise exposure regulation
The P-Iris function (Precision Iris) enables motorized, electronically controlled aperture adjustment. This allows the camera to automatically adjust the aperture to maintain even exposure, regardless of lighting changes. This control is especially useful in environments with fluctuating lighting, such as during transitions from daylight to artificial lighting or in indoor spaces with artificial illumination.

Compatibility with Axis cameras
The lens is specifically developed for use with a range of Axis network cameras, including the models Q1602/E, Q1604/E, Q1614/E, P1355/E, and P1357/E. The CS-mount attachment allows direct mounting on cameras with a corresponding lens connection. Compatibility is confirmed by the manufacturer, with the listed cameras being the only devices mentioned in the source material that can be used with this lens.

Use in surveillance systems
The lens is suitable for professional surveillance systems, particularly in areas where high image quality and flexible zoom functionality are required. The combination of IR correction and P-Iris control makes it especially suitable for applications where lighting conditions vary, such as in entrance areas, parking garages, or industrial environments. Use with Axis cameras enables seamless integration into existing surveillance networks.

Technical basis and installation
The lens is designed in CS-mount format, which represents a standard mounting interface for many surveillance cameras. Installation is performed by directly screwing the lens onto the camera, with electronic control of the P-Iris function managed through the camera. No additional adapters are required, provided the camera supports the CS-mount.

Operational advantages
The combination of optical zoom, high light transmission, and motorized aperture control enables flexible and high-quality image capture. The P-Iris function ensures consistent image brightness, simplifying post-processing and analysis of recordings. The IR correction guarantees that no image distortions occur even under night-time or infrared illumination. Compatibility with specific Axis models ensures secure and reliable integration into existing systems.