Technical data
Mounting	Lens

The AXIS lens with manufacturer number 5504-971 is a megapixel lens with a focal length of 8 mm and an aperture of F1.6. It features an M12 thread and is specifically designed for the AXIS P39-R series of network surveillance cameras. The lens enables a horizontal field of view of 40° when used with these cameras, providing balanced coverage for typical surveillance scenarios in indoor and outdoor environments. It is equipped with an IR filter that optimizes image quality under infrared illumination by filtering out unwanted infrared light components, ensuring clear color reproduction in daylight and efficient night vision functionality.

Megapixel lens
This lens is designed for use with megapixel cameras, enabling high resolution and detailed image reproduction. The 8 mm focal length provides a medium field of view, making it well-suited for surveillance tasks in rooms, corridors, or small outdoor areas. The F1.6 aperture ensures sufficient light transmission, achieving adequate image brightness even in low-light conditions. This is particularly important for applications in indoor spaces with limited lighting or during twilight.

M12 thread
The lens features an M12 thread, enabling universal mounting on cameras with a corresponding connection. This thread format is widely used in surveillance technology and ensures secure and precise attachment of the lens to the camera. The mechanical fit ensures the lens remains stable and prevents movement or shifting during operation.

applications
The lens is primarily intended for the AXIS P39-R series, a range of network surveillance cameras designed for indoor and outdoor use. The combination of 8 mm focal length and 40° horizontal field of view is particularly suitable for applications requiring balanced coverage of areas, such as entrance areas, warehouses, production areas, or small outdoor installations. The IR filter function supports use at night or in poorly lit environments, enabling the camera to operate reliably even in dark areas.

Technology explained clearly
The 8 mm focal length determines the width of the imaged area. A value of 8 mm results in a medium field of view that is neither too narrow nor too wide, offering a good balance between detail resolution and overall coverage. The F1.6 aperture indicates how much light passes through the lens. A smaller F-value means more light, which is advantageous in low daylight or at night. The IR filter ensures that the lens does not produce color distortions under infrared illumination (e.g., during night vision) by filtering out unwanted infrared components from the light spectrum. The M12 thread is a standard in surveillance technology and allows for easy and secure mounting.

Compatibility and accessories
The lens is specifically developed for the AXIS P39-R series and is used in conjunction with these cameras. It is not intended for other camera systems that require a different thread or optical adaptation. Use with other cameras is not guaranteed and may lead to unwanted optical or mechanical issues. The lens is supplied in a pack of 10, suitable for larger installations or replacement needs.

Mounting and installation
Mounting is done via screw connection to the M12 interface on the camera. It is important to secure the lens firmly and without play to ensure clear and stable image transmission. Installation requires no additional tools or components, as the lens is directly attached to the camera. Mounting is part of the standard installation step when setting up AXIS P39-R cameras.

Operational advantages
The lens provides reliable image quality under both day and night conditions, thanks to the F1.6 aperture and IR filter. The 40° horizontal field of view enables efficient coverage of surveillance areas without unnecessary image distortion. The M12 connection ensures stable and durable mounting, which remains secure even under mechanical stress or weather influences in outdoor environments. The supply in packs of 10 is advantageous for projects involving multiple cameras or for replacing defective lenses.